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FARMI AND GARDEN. MATTERS OF INTEREST TO AGRICULTURISTS. 5fome Up to Date linis About *ultiva lion of the Soil and Yields Thlereof Horticulture, Viticulture and Flori. culture. RIlains : Irrigation: Drainauge. It is found by observation that for dry farming to be possible not only must there be at least twenty inchiesof rainfall during the year (being that of London, England,) but that the rains be moderate in character and that the temperature be not excessive: also that the rain be of considerable duration to allow of its penetrating the soil and dissolving the constituents in it. which furnish the food 'or the ispe cific plant being gir wn( . says I-,' rigation Farmer. For if the rainfall occurs in violent storms of short du ration and falls on an impervious en broken prairie.h I ;n;r cdonsiderable de clivity. it runs off into the valleys over the impervious surface, or thlroliugh the por-,u. soil. if such exists, into the streamn,. leaving' the soil dry. the at mosphere hot, and the surface of the ground parched. I Observations show that there are certain districts within the sub arid region where the rainfall is concen trated into certain months, producing a rainy season. When this occurs thdur ing the growing season of the year and the temperature is not too high. i twenty inches will sitlice for dry farming. a ileteorologists, for the purpose of. comparison, divide the rainfall of Kan sas into three belts, the eastern, mid die and western. 1, The mean of observations for a period of fourteen years for these belts was c found to be ::7. 2:i.I; and 1I.4 respect ively. Of this last amount it is found that 65 per cent of the annual rainfall falls during the growing season of the b year, thus gving 19. lx-5 per cent eiluals a 1:1.1 inches. which for purposes of col lection for irrigation imay be regarded e as the mean annual rainfall in that region. Ii Long experience in the collection of i water for city supply shbows that -4. per font of the rainfall is available. which givets 12. x hi per cent equals I; inches si nearly. This is the yearly average for ci a period of years which may vary forty ir tiines either way for a given shorter tl period. The above shows the necessity for tl two things. lirst, for the irrigation of a given area of land provision must be hi made for ample storage rooln, and ,t second, in the interests of safety. that o1 ample overflows or spill-ways be made is to provide for the free discharge of the se surplus water that may flow into the p2 reservoir. ro The promoters of irrigation projects ai in westein Kansas, in their demands ,AV for aid from the government for sur- fo veying for reservoir sites and for their in csnstruction. would seem to be ignor- i ant of the physical characteristics of Se that region. In the mountain regions hli of the west, narrow canons furnish dr sites for dams wl;ch will impound sa larg-e quantities of water during the periods of floods, while in westelin th Kansas, the source of supply of water ex i, the rainfall, and although there are 1 many depressions in the open prairie, th which could be made to store water Ia sutlicient to irrigate many thousands of acres of land the conditions are suchl that the water can not be drawn out th by gravity so as to be available for ir- du rigation. cl (;rowing Evergreens frotm Sceed. Good seed must be procured of the previous season's crop. Avoid seed that is old. Alake examination and see that the germs are plump and sound. The seed of the pines, spruces and firs can be tested in the winter in the same way you would test wheat, oats or barley to find the number of grains that will freely germinate in a given number of seeds.. Seeds of the evergreens men tioned should be kept in a cool dry room until time to plant arrives. Soak in warm water from twenty-four to thirty-six hours before planting. 'aeds of the Arbor Vhthe should be stratified as soon as picked from the tree, dry ing destroys their vitality. Red cedar and all juniper seed should be strati fled as soon as gathered and remain in the stratified state one year before planting. The ground selected to plant ever green seed upon should be fir4 class soil for corn, as free as possible from weeds or grass. The best way to secure this condition is to grow a crop of potatoes, with such culture as will absolutely destroy everything of the need hind. Plow and pulverize well in earny atumn, then in about a week afterwards throw the ground up in rough beds rin np east and west. This is done withi lr, and plow in such a man ner that .is beds when finished will be four feet wide and from four to six ;:ciiis a'',,' the general level. The ialleys b,.t : ,.een the beds should be two i feet iii width. Set good strung posts 1 eight h'cet aria; t each way over the en tire ground to be plantec. Set them from two and a haif to three feet in ,( the ground and sev4 feet high from the ground up. hiracethe out:ide row I of nosts all around. i'Then run heavy i galvanized witre on the top of each row r.f posts, Drtth and south, and east and west, and fasten ccurely with a staple on top of each post where the wires cross. Cover the whole top with com mon wire lath fencings, made with one twist of wire less than common, be tween the lath to brin? them close to gether. Enclose the ,ides in the same way, fastening everythiing securely with staples to the posts. Instead of using lath, brush can be used by plac ing the wires two feet apart, and weaving and tying brush to them. iTh: shade must be evenly distributed so that half or lhttic more than half of the rays of The sun will be intercepted, After finishing your shading go over all your bells with a cultivator andi then let it alone until spring comet - and the ground is dry enough to work well. S,:atter a liberal dressing of wood ashes over all the beds, then pul pveize thoroughly to the depth of four inches, finish making the beds. have the edges straight. beds four' feet wide and an inch or so higher in the middle ' than at the edges. The soil min'st be completely pi ",erized and absolutely SIfree fromt rubbhill of every kind. You iare now ready' to sow the seed; sow Sbroadcast and have three or iour seeds tothe sqtlart'e inich. After sowing a t bed. run11 a common size garden .fLrr over it unt it every seed is pressed fir:. into the soil. ('over the whole bed with ligh it eired. fine clean sand to the depti: f one quarter of an inch for the spruces, tS otlch pine and fi's, m lld aboiut one half an inch for seedr' like white pine. Iied ,trdar ttnd Arbor \'itk: seed is tIl;en fr:omi t plae plec where they are stratifi '., andt sown, and all then are rolled aed cuvered as the others, w-ith the exception that the Arbor \'ithoseed is just barely cover'ed with sand and pulverized dry moss is sifted over them to a depth of a little less than one Itlnarterl of an inch land the bed care fully sprinkled with swater through a. fine hose. After every rain the beds must be looked after and sand applied again wherevcr it has washed off. The seed germinates in from ten to twenty days after planting. All weeds must be pulled out by hand as fast as they appear, as the beds must be kept, per fectly clean. The object in having the ildes enclosed as well as the top is to keep out rabbits, dogs, poultry and l other vermin. A dog or rabbit merely wallking over a bed when the trees are coming up will destroy thousands. A nood boy with a shotgun is a necessary adljunct to keep certain birds from dig inu iup and eating the trees. Thismust be attended to. While the little trees are coming up. if the weather is dry, tlte beds must be carefully sprinkled every evening. Use just enough water to thoroughly dampen the sand on the beds. I Iave some dry sand stored away so that during long spells of rainy, duamp. foggy weather you can get and sprinkle the beds with it after each shoiwer. This coating of dry sand shoull be very thin, not over 1-32 of an inch deep. Fl'll out the weeds before they form the second set of leaves. kieep the alleys ciean with the use of the hoe. Thl: ground : ccupied by the seed beds should be at least six or eight rods froml any building, trees, hedges or other windbreaks. A windbreak is a good thing to have around your seed beds if at a proper distance. I prefer a distance of about twenty rods or more to secure good air drain age. The beds must be constantly watched until the little plants have formed their true leaves. The most important objects to keep in mind are: :'irst-The birds must be kept off. Second-The weeds and grass must be pulled. Third-I. the weather is too dry, sprinkle; if toot damp, use the dry sand. After the true leaves have formed the ý.:-ats require but little attention except that weeding must be kept up. When the groun.d begins to freeze in t the fall covetr all the beds with wild t ha:y use just enough to cover theml and no more. This is removed the a latter part of the following April, and c the trees w'ill require no attention during the summer except to be kept clean from weeds. The next fall treat c the beds to another covering of hay, a and the following spring you will have, f if you have closely followed rny directions. in spite of possibly some severe losses, .,00I0 or more trees on t each 4 feet length of bed; 2 years old c and from : to 10 inches in height, hi ready to be transplanted.-Charles F. a Giardner in Farmers' Review. t Mlillt. Of this the South Dakota station says: Stems erect from annual root, unbranched, one and one half to four feet high: leaves very long and broad, rough, spike usually large, from two inches long in the smaller forms to eight or ten inches long and more or less compound in the larger and more highly cultivated ones, oblong or cylincdrira:, usually yellowish or pur plish and nodding; bristles either lolger or shorter than the spikelets. T:lis is one of the most useful of our cultivated annuals. There are many St.fferent varieties in cultivation, such as German millet, Hungarian grass, (olden millet, etc. As it is usually ready for cutting (if for hay) in from two to two and one half months after sowing, it is an excellent catch crop when others fail, and can be sown after most other crops are in, and will then have plenty of time to mature. The yield of hay is usually a heavy one. When used for hay, it should be cut as soon as possible after heading. If allowed to stand until the seeds are well formed, it is thought to have a bad ef feet upon the kidneys of animals to which it is fed. On the other hand ground millet seed has been used for fattening hogs with good results. Be cause of its early maturity and the pos sibility of its being sown late and har vested early, millet is an excellent crop to vse in fighting certain perni cious weeds, as, for example, the Rus sian thistle. Cut worms seldom damage it or even the crop following it the next season. A specimen analyzed as follows: Air dry substance-Water, 8.74; ash, 10.19; ether extract, 2.96: crude fiber, 32.14; crude protein, 11.10; nitrogen-free extract, 34.87; total ni trogen, 1.78; albuminoid nitrogen, 1.10 PEAPR, were brought from the East by the Romans. CAPERS originally grew wild in Greece and northern Africa. I)airying in Georgi. it It is surprising that the south has been so slow to give attention to dairy. . ing and'poultry raising, for which it is 1r so admirably fitted by reason of its d mild temperature anti abundance of fodder of various kinds. That it is k sure to awaken from this state seems f certain. Prof. J. 1. Budd of the Iowa agricultural college has been taking a r trip through the south, and from cen i tral (e;orgia writes as follows to Farm e and Iairy: I have been able to give some time e to an investigarion of the possibilities t of dairying in Georgia and find the 1 conditions extremely favorable. Some of the reasons for this conclusion may have some interest: 1. The main supply of butter and cheese is now shipped in from the north, with the added expense of 1 transportation and commission of varied "go betweens.' :. Land suitable for stock farrmingis surprisingly cheap. The so called worn out farms now growing up to pines are easily cleaned and seeded with liermu da grass, clover, alfalfa, cow pea, field pea, soja bean and other nutritious dairy feeds. 'Prof. Wing of the experi ment station decides that no pasture grass he knew in Ohio or Michigan equals the hermuda grass for dairy pasturage. and that winter rations for dairy cows are cheaper and richer than at the north. He especially em phasizes the fact that cow pea ensi lage is tile best milk and fat producer lie has tried in any state. 3. The pasturage season is long and the winter feeding season is short. Mr. B. W. Hunt of Eatonton, central Geor gia, says that for an average of a num ber of years he has good pasturage :20 days and a partial or entire feeding term of 160 days. lie estimates that the cost of first class keeping for best dairy results will not exceed $28 a year per cow. 4. As to diseases Mr. Hunt says cattle are practically free from tuber culosis and other northern diseases, but the southern cattle fever will sweep the herd, or may do so, unless the calves have it when young. He said: "'I have long practiced with suc cess giving the fever to all my milk drinking calves and we think no more of it than vaccinating to guard against smallpox." Prof. Wing, at the ex periment station, has guarded against the disease by the purchase of cows known to have been through the fever i when young. It appears to be abso lutely certain that the Texas fever is a non-recurrent disease even to a more certain extent than scarlet fever or smallpox. 5. It has been suspected that the heat of summer was too extreme for profitable summer dairying. But Mr. Hunt, Prof. Wing and all other es- t perienced butter and cheese makers in sist that the relatively moist summer s air is more favorable for butter and cheese making than the dryer air of the northwest, and that in reality the summer heat on the plateau of central Georgia is not as high as that of t central Iowa. When Prof. Wing came here from Ohio he says he felt nervous about trying to make full cream g cheese in summer. But from the start n he has made choice butter and heese, P with what we would call the most tl primitive appliances, through the dog a days. rr 6. The drawbacks are not found in o the climate, the soil, the water, nor the feed, and the southern fever is not f much of a stumbling block if reason- .c able precautions are taken. But the ni country 'neighborhoods where cheap ti land is found have few of the social ad- " vantages of the north in the way of p churches, schools or associates such I as northern men must have for com fort or enjoyment. Joining this to the ai peculiar negro problem everywhere n presented, renders it almost necessary It to settle where northern people have sc congregated, and there land brings a al higher price and usually is not the most favorable for stock growing, as Si these localities are on the higher levels h; usually, where commercial fruit grow- it ing has proven most profitable. All te things considered there is no good rea- ci son why a northern dairyman should a' come here unless a change of climate wvith a view to benefitting health is a t main reason. J. L. -cUDD. Atlanta. Ga. ti Diversified Farming. In every other business except farm ing there is some attempt to fit supply to demand,says Pioneer Press. Manu facturers and merchants take trade journals, feel the state of the market, and would not dream of trying to force a commodity on the people after the people had quit buying it, or were willing to buy it only for less than cost of production. There should be information accessible to the farmer. In every state the commissioner of statistics should ascertain, as nearly as may be, what are the products of the soil which the state might produce, but which it does not produce in quantities sudficient to sup ply the home demand. These facts should then be placed' in the hands of every farmer so that production might be regulated ac cordingly. It is simple imbecility that the farmers of any state should bust themselves with producing something that they have to send thousands of milcs to market and sell at a price that keeps them constantly under the harrow of poverty, while the people of the same state as a whole are sending sway hundreds of miles to get pork or :.airy products or eggs or chickens that they consume. If we could have di rersification of agricultural industry, and if we could have it diversified ac zording to the plain needs of the con sumers as shown by the records of trade, the attention of the farmer would be fixed upon supplying the some market. ]n that lies the greatest ,rofit and the highest interest of the whole community. SCIENTIFIC MATTERS. WEW 1VRIKVT(EIs AND IMPROVE MI.WNTS IN TIlE U..F'LU'L AR'1'N, The I'altitgte of MIrtnla.. and il "rl,-v-- ('en t rifugi T'Ir n Sel n iat or-Ga::4 -n1 inies in Elet'lrie 1Vi)or -W'oo.ld-. Pul)p 'ipen-Diet iand Stiupt;lity. A corresoponlldnt of Khowll,\'ltdg sih.,vws tih:t1 the pIhellolena of ltnls nla f:t tigu co('olrr'spondls very c(losely to 1ll, fatig.e of muetatls. Futgt,"e of metals- n phrase, which hls conlll iint.) ut g." onliy in ret'ce, t yte'.-dt scri-:.; :i ot)!n.litio1 of the in:lterial no pretviously under-i, t stoodt. It exprell'. s tIhe ' eining of ltie latiollship to :ah (1hor of I t ' Imolecules of Iwhih thie l llt is con! slit iu'odl atemlintt whit t 101termlll wearines, or literally i t -I . ( inot edi' v '. in i et irs :!i',' 1":ml lit ar' with 1vthe fact hllt part.a of m- >y'hlni. break down after luiving worked s:at i';fa totily, t l an I ppa tlitllly with sai, ty. for mlol ithit, or it ut y he,, for 1il 11y yeoar. The callist' of slc1 breakagneti o"nc a mylery!, .iS now klnowln to h) iatigue. This ri ncitp.lle is ilhlutrai't lt ito the Ibreaking of a piecet of wire. It is bnt h:lckw' ai forwtd unil ipo;rwad - tin 1111 S',es take pl:lt'-tron fatigue. If, how everi'. itn ls arell stra tiln'd iondt t e1o elastic limit, but l lnot blrokf en, atlhl if alone. Prof. B. W. K,'n0nediy hlis c(lea'r ly ttitdeoOnSt tlloel till I .c'tl) ;Iprtie prop >41y of mitalttit Bars oi f st'el atnd iron, tiied in a t1,esin ma llhite l'eyoid[ thi, chistic limit. and si, w,:akelned thereby that if they wore testd tgain the following day Ihety Iwoul ta'ke t l'r 'Iolltteolt set at IOl l-1 iti'd o t' 1 s of itll ir rlnlr load, wouldt , if allowed to rest for atout two yoears, lea found not only to have recovered tilir origitnal blastic. i hit of strOength. bui t to laO tiexio (lei t. and to livte becotmllO Str'onllge'r tlho efore in the directionl in which tohy tad been pulled. If tlle priod of rest vas materially shortened, the rewtora ioll of stnrengll was found to t be n corl, tespondiugly ico)i)oplete. 'Thits theory f faltigtte holds good in regard to tuen les is well as metails. Prof. Michael ostehr pointei d oiut l.st yeo ar ti at the nuscles in the leg of a fro' severed rout the body. and caused under vie, rical stimulu]s to exert themselves in) vorlk unttil thoroughly w'earied, and no oug,'r able to respond to athe tleeictal ,xc'tation ,will, with rest alone, re over their mola.ticity a 1 alesbl to re- I ulge work as before. Prof. Pssttr emlonstrated that the weariness was u the muscle and not in the nerve. he worn tissue could not, of course, ' restored, but from 11h1 tatig e lhe luseles did recover .and t is clear that ie fatigue which - experincie ill, ur own bodies must largely fatigue 1 the technical sunnre in addition to oeariness proper. or worn-lness. Lest ,therefore, requirted, not only to (,u ble wasted tissulOe to lie restored by resh material fromn the blood. and by ut also afford opportunit.ies for the trained molecules to recover a state t repose. Sea and Mountain Air. A London inedical paper in anticlipa tion of the question usually asked at this time of the year, "Where shall we go this summln r?" makes some pr'ti nent suggestions. ('hildren and old people almost invariably do well at the seaside, while mountain resort,s as a rule, are less suitable to them. If a imanti has dLysp)opsin. (,'spcitlly if it 11o of hepatic origin, he should get as far away from the sea as possible. Sea. air is also known to have a most un favorable tendency in skin di:seases, eczema eslpecially being often seriously aggravated by it. But scrofulous ft'f'c tions do better by the sea than any where else. as do brouchilis and em physema, and in rhumalntie, c'ardiac or ienal troubles tIle air of tin motuntainl is baneful. Mild castes of insomnia may be benefited either by sea or mountain air, but olbstinate cases defy both cli mates, and are only anlenabile to the Influence of the sheltered island re sorts. For hysteria, too, the sheltered and moderately bracing island iresort will be found beneticial and much safor thait either the imountlain or the sea side. both of which are apt to do more harm than good in such cases, Incip ient phthisis may be relegated either to the mountains or the seaside, ac cording to its origin; but the medical adviser should determineie this. As a general rule, it may be stated that if the phthisis be at all of a "strllnous" type, sea nair will be beneticial; if of a "catarrhal" origin, the moist ani seda tive marine resorts should he tried; and if quiescent and limited, in a con stitttiot that is not neurotic, the moun tain should have tilt first trial. Centrifulal 'Inxr Separator. A useful maclhille has i~e(n pitut on tile1 mlarket for h111e expeditios purili cation of titi tar. Ordinary tar, iS ex tracterdl at gas workm, conltains quite a ait.o per(enttage of vater, ias mItch as 16I per Ctent or llore. 't'i i must he extracted lbelf eo the tar is available for c:lmllmeci i l u.i ss. 'hli i'ifllh tlred Sepatratioin will lake plhtt' in the tar wells, owntit to tlit' dil'rcenlce of densi ty, if sthlicictnt lillle is giveno but. as a rule, tar delivered from! the g as works contains fully. 7 orC S per cant of' mocha 1nically combined \iat:r. The principle 1upon which the new nmiitbine is the action of (centlritfugalil fort,. IThe tar iheated to a.toitI 92 dt'egr:'s Fahren helit, to reduce its viscosity, and is tlhi convoyed into tihe receliver of the tmachine by a pipe. The r,-eicver is rapidly rotitiled, antd th' tlr, being Ie lvitor is sepalraitedi lltrol the water I ant1 urtged against the walls of thie re ceiver, mounting upwalrds to the top of the quickly revolving vessel. 'two collecting pipes are fixed i a:lr the rim of' tilt separator. ()ne of thllee is so placen that it collects the puriuied t'tt. while the other takes up tlhe inner ring of water. which lhas been left by the outward impulse of the heavier tar. It is stated that the separator is so complete that the purified tar' contains only one per cent of water. Theb ma chine has to be stopped three times a day for cleaning. Any grit or dirt in the tar adheres to the wheels of the machine, ant is removed by special scrapers, the operation taking about half an hour. About 2,810 gallons of t::r nro pur'itiel in az dov~r's work. mrt'~ iv.r~l'-polver iciug reqtd~i'ari ror driving i'Itlclirir \\itii rl~t ltei-tlti 801' ilt toijnc (' c'i'L~ ~ ~ ~It ('~~llllt` l 1(\lll''iitt'tl 01'litl 'li ''r· ''-:f lilnt toils: tiso to' tiitlia-it!:1' itt \(tll 1,; 1 Ii) Sa: I titt'' 111 t't'' Ill i'll)' t'i;9'!1c: l o t i 118itit:·~ 'tl)'t'tt' lit)! Ill II i~ OcttI to sil''lit~ 111) oll~it11 I~'tltl'. l ti' c 11111 sij(·i111:4lilji'.1, i~l~ 01'c rittil~(\ Work. 1' hi qr Cs 't"1aianplleto in l'eei i'iviii Work. ,hey ! in t lantilt,[I sqall poweredl gas tr- eng'ine is used to a cOUnsideilrahe eX corI tent probabtly more geni'rally than in r this country., at presienit,i at onu' of the q- questionlis which c(mlie before tithe con-i 'Iatin iui etgiie.rs, accorldilg io Mr. Ilhe . iETn018.1t D)owson ill lit' Lotndon red ]lecttLriian , is the ft''si ility of li sitl,, 'ee gas; engines to drive alternating cur" in rut electrii generators in larallel. u It is admiltted that. gas power with cu ,l g len'arator g..s, is chealtier 111111 stietm e- potC er. espe'inlly ill smaml l statio sS - withll light iday lains. Not o ilty is the fit' fl contsiumptio lesos per horse power ls sed. uIll u1l0 st:anl-by los. of hollerls mr. with light loads, or with no loatdls at rse" all is al:ost entir'ely avoided. Thle t h ,ucementen. ihyrt'eftre, to adopt gas int lOW' its ;grleIt, lutld with the best type in 1of gas engines, as now made f'or elec ti riecnt work, it is tas e:sy tin drive lon eo t n on, illu l t'irenlt inuctthiulls Ias with iist ilin e i1tn is It tii e g e11;iOtte. h dy tnom o ctan lnow hie coupled to the engines if by necess:lry. WVitih altlernaltors, however, eo1tain difficulties presentt thaemtselv's. S iand hile s' hltiol0 of the01 will. to at te certain extoet, s:ly, Air. Dowson, de tepOnd on it1h co-operatiotn of electricians withi the m)akers o' gaos engines. No one questions but that a gas engine R_ s well as one lor mIore ot inuous Clo )a rent mlaehines, but two or more gsl Sengines have not been used in dtriving we two or more alternators in parallel, rti Tlhee a110e nhtierolls ditificulties which od liedge about tlhe aelievenlenlt of this a omtllinnltion. howe yver'.-Providelice .o rllilel, as Aluminumn Alloys. r 1 Dr. A. lochet h:las recentlly ftudit'd til tiI physical proplerties of the alloys un- f'ornled by mixing aluminum and an li, ti' ony together in various:: proportions, sly with interesting results. The alloys t et- containing less lthan 5 per cent of an- 1 th- timony ar'e harder and have grea'ter m- elasticity and ductility thn pure al- ( or ultninl. Their color, however, is not I y buat they tale ia lhoter pIolish and resis.t in atmospiheric action in a Ireaoter ldegree. i- Whel morll e t alimony is added to the i e alnnminunl. the elasticeity rapidly di- c re- iinilshes. as does also the lhardness, I o and 11 e alloy soon libecomes brittle,i 't The c''l'rcteristie crystalline ciondi- 1 INr tion of the metanl lso undetlrgoeos a 1 ea- very marked change. and when theb 1re amount of the antimony reanches 10 p- per cent ilth alloy forms shinXing crys Ilr talline plates. The addition of anti I o- mony. als might tli exlpected, also low al 'rs tIlhe melting point. The alloy can a used in the al i te s for tlhe preparation if on :a collerecial scale, of the triple bs" alloys of thse two Inetls with nickel, a Stunlyugste'n (and silver. 'n npE1'illents ho. Professor KoIernot on "winil-prlsssulte ]i!loHllsll'lties 1hal the total pressure on rectillangl1r blocks r is the smie whether they be placed t on with one fae normanl to the wind or o dia_,onilly. This total presosure is nine tenlltlhs of that of a thllin fla:lt plate equal in atrea: to one face ill ith, C1m€ of a Scl.l.'.', :tlld fl'lll SO'ven to nlille-tlttlhs r 1 ill the case of other rectangular bodies s the lamer figure being obtain+,l for b 1eblocks muore than three timles as high C )e as 11ti width of the base. Vortical c ed walls in a Untiding have a marked e- ' aI feet in !redctiln, thl pre '(snrl' ol the a ;:1 roof. andl thus with a roof of MO de- li as grees pitch the redaction is Sti per cent. p u V hen the wnlll is extended to form a e' o I'parapet the sheltering effect causes a i li, still furnther reduction in ipressure, and n 1with a low pitch instead of :1a pressure o he a Vllccuntll is crented duell to the suckling - or asp:iranory action of the a:li streanl i upon '-he stagnallnt body of air inm he mediately behinl the s;hlter. Similar is effets laive been found with girders t ag and Intlice wo:'k. malld those results are r I orf co!nsiderable practical imlportance. :) ,ormnation of O:lls. ( A nmemtber of thel Berlin Chelnical so Socity put awa:y, some twelve years t 1r. since, a bot te containing hydrofluor- E silicie acid, and on finming it recently, hle Ie noted that the glass above the t r. liquid had been strongly attacked. In d so one of the deeler erosions he noted a ws white mass, in general appearance re- o a- senmbl-ing closely the gain opal. It V ('was trausparent or transluscent on the rt borders of luminated structure, beau- b le tifully iridescent, and in optical rea, b al tlou amorphous. Analysis showed It e o to have the formula of the Hung#ii';t opal T.H.f DREA31 OF' C'HEMISTRI . Elxernentring to P1roiluce Palatablg Beefnlenks Out of the Element,. T'lh e'lectrician has one dreaml and Sthe social phlilosopher has :nother. SBut the "lriinist has also a dreamin that is as fanctlifl ls a vision of tlih alchem i,;t of thei dark ages. This is how he would sohlve the problems of comfort I anl h:llippiness whichl have been put to il'` huni;lll frace: "The chemist hopes for a synthetic lbefsialc, tor a cheminilcal loaf, for a cu.tp o c(ol'l'ee im:lde. like his soda water extrai'ls, out of inorganic. Itiatter. Il.e \Vallis to see tlhe diay w'hsen a synlthetii' climate shall envelop tilhe earth, when tlie raioniaker shall libe a prophet anti mail shall lhold the string to the un rily big." of Aeolus. "lin tilat (lay thile food andl I'ailluent of mankind will be produced in the cruei bles of the c(lLinist. Once nlore veld t'e wiill clothe tli(, tiells now defaced by i!Unloai toil. and the shaiggy- wootts will i.prilg na'lw on the i' :spilled : iil ,es of" the hills. Tllhere will be n oii I illiug or llarvest. no slloghtIer of ta ine hl'lsts. ()i: of lhl original e nitient: ch<s'iistry will compound chops anl citilets. knatl Ilie dough an1d brelV the ali. "'Thie itle has already lbeent partly won in thl' case f edlll icines andi tdrugs. Thel wine at the table d'hoto ne'ir :a'l it hle vineyard. The "prize, ffrlit flowers" of the ldrug store aire' in nocent of the orch:u'd land garden. Syntlicii cellenist'ry is yet young. It lots Iulll gr''at advances in the pro dll'tion of gl'yocerids and sugars. It hals I4,0( devotee s in this coluntr'y whlo loe le to nikei the dreai li a reality." Diet 4altln Stupidity. Dr. lFrancis \Valmnsley states a grave Iphysidogial fact in tile assertion that "clue motlhers distinctly diet their off i )ritng for stiupi tlity." Dr. Walnisley ottghit to know, for lii is snperintelnd enti o' an asylumn wher'e lie has ir950 idiots. imn cie and epileptic childrien ulieri his (icare. Bad and unsuitable food. hle tells us. often caluse thicken itg a1l onlarg'oient ol f the skull, aind physio>logy lhs amlply ecnfirmed the o0d theory of schoollboy days that a thick skull is tie outwlard and visible sign if dull and stupid brains. At Darenth Asylun.m which Dr. WaIlnslehy super vloe, ver'y c.lrfelll observi'tiolls wlere maeti'. alunl it was founlid ltht not only was the intellect poor in thick-skttlled andl rickety childrenl, but the very sensies ih(mseclves, tih senses of sight, of hearing and of tastte, and even the power of SUlqeelch, are all (Lremarkalbly impaired. Such clhildren "see badly, hoear badly, feel badly." In tI'he matter of spelech the facets are si'tartling. Of lthe 150) patients, only 360 articnulate witlhi normal distinctii.s. Of the re mainderi. 2)0 spetlk indistinctly, while 300 actually cannot speak at all. This subl)ject hais not received the attention it deserves, and it is to be' holped that such inlportlant physiological facts as Dr. WalVnisley has made known will be taken forther cognizance of by the leaders in medical science. Big Dy.natloi. The size of electrical apparatus is in creasing very rapidly, and electricians now look back with amusement on the apparatus they were using only a few years ago. The increase in bulk is due to niany causes, chief among which are the improvement In processes of manufanture and the growth in the demand for current. It is not merely for large enterprises in power trans mission that these new big machines are used; they are required also for ordinary central station work. Thus, a dynamo is now being built for one of the central stations in St. Louis that will deliver a current equal to that required for 1(1,000 incandescent lamps. The armnature is ironclad, 16 feet in (liameter, weighs nearly 100. 000 pounds, andl is carried by a 22 inch thick shalt. Half of the field magnet frame was cast recently, and with the pole pieces elmbedded in it weighs no less than thirty-five tons, measuring 24 feet over all. This ma chine is to suppl)ly current, not only for incandescent lights, but for are lamps and motors, and will be onel of the biggest ever built. Five years ago a machine one-quarter its size was look, ed upon as very large. New Illunlinant. A curious by-product in the manu facture of aluminum and the reduction of refractory ores has been found. This is carbid of calcium, from which acetylene is readily obtained. That acetylene has a high candle-power when used as an illuminating agent has long been known but the difficulty has always been to obtain it cheaply enough to enable such a use to be made of it. Apparently it gives about the same illuminating value as the gas obtained by elacking oils. a product now used largely for gas enrichments purposl)es. It is significant that this latest: addition to the gas engineer's resources should have its origin in a strictly electrical process. Should it be found to fulfill all the hopes cherish cd by those who have tested the pro cess experimentally, we may some day meet the anomaly of an electric gener ating plant being worked to make iH luminating gas. This could easily hap pen if the value of acetylene be suffi ciently great to render its production in large lquantities in this way ad visablle. To use as an illuminant the objections urged against all combus, tion-illuminants apply. Pins for Insect Collections. It may not be generally known that the nature of the pins used in faslen ing the specimens in collections of in sects is am attePt of great Importance. Ordinary brass pins even when well tinned, are very liable to oxidize in the body of the insect, and often thus destroy rare and valuable specimens. Black varnished pins are almost as bad, as the glaze roon cracks. leaving the meta.l exposed. Even plated pils do not appear to resist the action of the compounds ,-',eloped in the body of the insect. tkd6ugh solid silver ones will, so that cheap silver may at least be a boen to the entomologists. A bronze, pin has found favor of late, but is far from being a perfect fasten er. The latest thing is a nickel alloy. which possesses decidefl advantages of the commmn kind whose basis is brass