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mm :r P w 1 :'.: ! l SECOND SECTION . ! . BISBBB DAILY REVIEW ? k -.; 4 .: PAGES 9 TO 12 ; .; .,. j ?. REGULAR MEMBER ASSOCIATED PRESS. 4V VOLUME 13 BISBEE, ARIZONA, SUNDAY MORNING, SEPTEMBER 11, 1910. NUMBER 106. tT V I - if ERRORS IK MINE SAMPLING Veil Known Authority Tells Why Average Values of Ore Rarely Meet Sample Fixtures ;. " tBy L. D. Ricketts.). All who mine so-called porphyry crec are familiar with the reat dis crepaney between the copper found in h miner's grab sample and the act ual average content of the ore. A part of this discrepancy Is often ilut to tile natural optimism of the miner, but even -where trained samplers are employed at the mines, my expert ence is that tbe hand samples if the cHbS of ores specified are richer than the ere really is. These inaccuracies have often led the larger producing mines to install sampling works ade quate fr the accurate determination of the composition of the ores sent to mill or furnace. While the laws governing- the grade of porphyry ores are complete it is a common experience to find, in chal coclte enrichments, that the extent of fracturing and Assuring previous to enrichment Is a function of the grade of ore. It is also a act that a metal lic or earthly sulphide is a more fri able substance than a highly altered rock. When such ores are being brok - en they tend to break along joints fissures and seams where chalcoclte exists in more or less solid streaks, and those portions of the matrix con taining more disseminated metal tend to crumble ana powder more than the leaner rock. In special cases I have seen ery pure and masshe bands of copper glance in clay where this rule would Bet apply. Such occurrence 1 however rare and does not obtain in the class of ores to which I refer. A3 a consequence, it is usually, is not alwavs, the case that the fines in ore broken by Masting are much richer than the coarse, and I have known of cases where the fines of an ore below 1-8 In. uniformly a&say about double tbe "grade of the true averageor the-j fines and coarse combined. The same principles are involved in. groove sampling or in any other sys tem where the ore Is broken by a blow or shock and a parallel line of reasoning suggests itself If an open ing -that has been groove sampled is examined it will be noticed that the groove is seldom regular in size and by running the hand in the groove the irregular surface will be found to be made up of hollows and humps. These irregularities are largely due to vari ations in friability and the tendency of the rock to break along seams. Groove sampling is essential in the preliminary examination of developed ground, but is is necessary to observe a number of precautions. The face to be sampled should be thoroughly and vigorously cleaned to remove dirt sul. phales and loose slabs. The groove is cut' at an obtuse angle to any prevail ing line of fracture. Ithlnk that not less than 10 pounds of sample should be taken to the linear foot of groovo, and great care should be used to cut ebout an equal bulk from each linear foot. These precautions will tend to reduce, not to efface entirely, the con' stant of error, and the engineer must look for a margin over costs and loss es that will allow for a factor of safe ty. The great advantage of drilling In certain classes of deposits is recogniz ed, and desirable rapidity in the devel opment of prospects is thus obtain able. But if what I nave said above be true, the drillings will show a siml lar factor of error. We cannot expect a churn drill or any other drill to bore & hole of uniform diameter in a rock that Is not of uniform texture. The hols will ravel, the softer and brittler spots will tend to bore with a larger diameter, whicb. will be assisted by the swash of water. Possibly the set tling of the heavier material will per mit the larger opening to partly fill with clay. The larger the bit the less the error, but nevertheless a constant error will occur. Aa investor of my acquaintance re marked that he had great confidence in a' certain mine because the breast camples taken from the pile averaged closely with the breast samples taken from the cars after loading. In both instances It was a case of grab sam pling, and the fact that the two series tallied closely month by month only indicates to me that they would show about the same screen analysis and, thereore, as both had the same con stant of error they checked. Assume a mine In process of devel opment, but with no mill or reduction works, and that the ground is drilled first, aid afterward the drill samples are partly chocked by drillng- 'under the ore and rasing through the ore zone on some of the holes.. Hound by round the foreman takes a grab sam ple aid when the raise is Unshed the usual groove sample of 2 or 3 lb. to the foot Is taken the fact that any two, or all, of these sets of samples checked would not Indicate to me that the sampling was correct; it would merely Indicate that tie check, ing series would hae the same con stant of error. As a matter of fact, however, I should hardly look for a check, but should expect the grab sample to show the highest value the grovo sample the next and the drill sample lowest, and that all would show too high a alue. Of course, it the ore is rich and the tonnage moderate care fully taken band samples will abund antly ansr.er because the margn of operating profit will be so large that the constant error will become a small risk; as the amount of the necessary Investment is the important factor. If, however, the merit of the property lies In a tremendous tonnage, the margin per ton required for invest ment and profit may be so law that a constant error, however small, be- J comes of immense importance. My conclusion are that in develop ing irregular masses of tremendous tonnage and admittedly low grade. the varous methods of sampling should be checked by underground work. As frequently earlier faults form the locus of later ore-bodies, these aults sometimes have to be fol lowed so that it Is excusable in some cases to have ore or more of tie strike drifts to depart from a straight line. All crosscuts, however, should be equi distant, parallel, and cut the prevail ing Assuring at an obtuse angle, and all raises should be equidistant and vertical. All ore extracted should be sampled in adequate mechanical sam pling works as carefully as if the ores were to be bought or sold. If there are strike drfts on enrched streaks, only that portion of the ore in the drift opposite the crosscuts'should be included in the aeroge of the ore; in other words, assay figures in the crosscuts and vertical raises should be used to obtain the general average. Considering the large sums to be invested for development land con struction, the additional cost for sam pling would be trifling. It should be understood that one cannot sell a single carload of ore on a hand sam ple, and it seems hardly reasonable to undertake to spend millions on properties where the profits aro avow edly small per ton, unless careful sampling Is done. o Don't waste you money buying plasters when you can get a bottle of Chamberlain's Liniment for twenty-five cents. A piece of flannel dampened with this liniment Is su perior to any plaster for lame back, pains in the side and chest, and much gists. cheaper. Sold by all drug- INDIANA CHARITIES. MARION, Ind., Sept. 10. The nineteenth annual meeting of the Indiana Board of Charities and Cor rection, which opens here tonight with an address by President S. E. Smith of Richmond, has brought to gether many men and women who are regarded as experts on the var ious lines of work which the con ference will discuss. GovernorMar shall of Indiana and Miss Jane Ad dams of Chicago are scheduled to address the conference tomorrow. o t "Can be depended upon" Is an expression we all like to hear, and when it is used in connection with Chamberlain's Colic, Cholera and Diarrhoea Remedy it means that it never falls to cure diarrhoea, dy sentery or bowel complaint. It is pleasant to take and equally val uable for children and adults. Sold by all druggists. o MOSBY'S REUNION. HERNDON, Va.. Sept. 10: Sur vlvlng members of the 43rd Virginia Battalion of Cavalry C S. A., known throughout the country as "Mosby's men." assembled in annual reunion here today. The gathering was at tended by a number of survivors from distant parts of the country. o RURAL INDUSTRIES. BERNE Sept, 10: The Swiss methods of arglculture, wine culture, forest culture and horticulture, in which occupations the people of the tiny republic are remarkably succes sful In spite of many njatural handi caps, rae comprehensively illustrated in the national exhibition of Swiss rural industries, which opened af Lausanne today. BIG PROFIT IS 5H0WDMG THE PAST TEAR Mining Industry Returns Splendid Dividends Through 1910 Phelps-Dodge Co. Be ing Second Among Coppers CHICAGO, 111., Sept. 9. From re ports made to the Mining World it is apparent that there are substantial profits in mining, even though the prices of the principal metals are at a most unsatisfactory base. in compilation of the dividends paid dur ing the past eight months, the JC1 iftg World finds that 120 Americas nnes and metallurgical works dis tributed among shareholders HSfiOlf 333, which, added to the dlvideWj previously paid by these companita. brings their total disbursements KP to SC55.0C0.659, a 119 per cent ie turn on their 1594,121,957 combined issued capitalization. While tWi does not Include the dividends paid by many close corporations and other smaller Interests deriving pecuniary benefit from the mining and metallur gical indusetrles, It is fairly repre sentative of the profits made as are- suit of legitimate mining. Then, too. there are the dividends declared by the securities-holding corporations, which derive their profits from hold ings in other corporations. The so-called gold-sllver-lead pro ducers lead in the total amount paid during. the year, having 120,741,721 to their credit to the 115,450,012 paid by the copper companies. Of the former amount. United States mines, 53 in number, contributed 112,577,125; 14 Canadian companies, all but two in the Cobalt section of Ontario, con tributed 15,136,C93, and 20 Mexican companies, 12,846,837. Far in the lead among the mines of the above class is Goldfield Con solidated, with a total so far thu year of 15,338,647, or more than 40 per cent, of the total paid by the mines of the United States in the first eight months of 1910. Tono- pah, also of Nevada, Is second in the list with 11,100 000, with the Home stake third with 1654,000. Twenty-one copper properties in the United States have paid so far this year dividends aggregating Jl!y 440,012. To date these properties have yielded profits In the shape of dividends totaling $341,813,370, a re turn equivalent to 2S9 per cent, on the combined issued capitalization of 1118,893,114. The leaders among the coppers is the Utah Copper company, with a rec ord of dividends for the eight months of the present year of $2,307,728. Anaconda and United Verde are tied for second place, with 11,800,000 each, while Calument & Hecla ranki third with 11,600,000. Sever metallurgical companies have demonstrated that profits in this de partment of mining are seeminglj not greatly influenced by low metal prices, for they show a considerable increase In earnings over the same period of 1909. Dividends declared by these sixteen companies so far this year Is 111,269,600, as against a dec laration for the same period in 1909, by six companies of 17,619,693. The seven companies mentioned have dis tributed dividends among stockhold ers, since incorporation amounting to 1104,800,000, a 46 per cent, return on the Issued capitalization. Ameri can Smelting and refining leads with 14,125,000, as against 13,427,500 dur ing the same period In 1909. Inter national nlckle ranks second with 12.87U95, while United States Smelt- ing is third with 11,802,379. One metal selling company has paid dividends so far this year oi 1750,000, and one quicksilver com pany 190,000. During he eight months of the year the nine securities holding compan ies mentioned above, have paid div idends totalling 19,109,158. These corporations during the first eight months of 1909 paid 18439,720, show ing approximately a half million gain in 1910. Amalgamated copper leads with 12,308,317, with Phelps, Dodge &. Co. second with 12,246,730. It will thus be seen that, despite conditions that are not considered normal, the mining Industry in 1910, from the standpoint of shareholders will be one of the most satisfactory in the annals of the industry. AMATEUR GOLF TITLE. BOSTON, .Mass, Sept 10: Well known golf players from every sec tion of the coantry are gathered In Boston today prepamtory to the open ing of the amateur champlonshln tour- nament of the United States Golf as sociation, which will begin on the links of the Brookllne Country Club Monday morning with a qualifying round dgtheen holes. WHEN WILL INVESTORS TAKE HOLD ? IS THE PROBLEM (Boston Financial News, Aug. 10.) It is well know that the control of Utah Copper is concentrated in a few hands, and there has been ample evi dence that Amalgamated has been ac cumulated so that it Is absolutely con trolled. It would be an easy matter. therefore, to arrange a combination of the two companies of It was desirable, and the two interests could agree ou the relative values of tje properties. It has been generally assumed that the Sherman anti-trust law would pre vent a consolidation of the two, but that law speaks only of combinations and it is not believed that a purchase of tbe mines of one company by an other could be prevented, or for that matter the purchase of both by a third company so long as It was a purchase and not an exchange of stock. It is even believed that the course followed In the Anaconda merger would be legal, viz.; to purchase the mines and pay for thefi in stock, but even if it was desirable to pay in cash the matter could be arranged by the bankers. So far there has been nothing to indicate that a meiger of any sort Is in process of being wjrk."i"u'" '" ie iuum ui w ed r that lh ohst.-mcln thnt r,m. banks ls als doIne away " fac ed one several months ago has removed. It .-. fr.nnrt Im,.r.lhl. then to agree on va'ues. The tecent conference abroad may, hotrever. have been more Important than Is gener ally supposed. The fact o strong buying of the loading copper shares cannot be denied even though it is found that the buy ers are not jet ready to follow prices up much farther. It may be that the buying ls based on expectations of a higher metal market, and it ls pos sible to derive much encouragement from the statistics of the Industry. The leading feature or the figures for the j ear to date is that the sur plus has Increased only an average of 1,000,000 pounds a month, taking that abroad and here combined. It Is true also that consumers have no large stocks on hand and mest buy to nil tnelr demands as they comei along. There is no doubt that the public cation ot the monthly statistics by the producers has hurt the price of the metal during the last eighteen months as it has shown the buyer that theividends, let alone interest charges, surplus was increasing and that there was, therefore, no danger of a run-. away market. It is believed now that on the cost of good securities at pres a policy of curtailment will be car-jent prices it may be well to buy with ried out until the surplus is reduced iout waiting for an absolutely clear to a normal figure or say two months supply. i LOCAL MINES RE THEIR 1 At Least There Is No Pro nounced Indication That? Ore Going to Smelters Is Decreasing nrwrt -ir nirrpnt that th ore production of the big copper camps is to be reduced. While the rumor, U may be true of dther camps it is not ( stated that he was now pushing im true In the Warren district. All of portant construction work; wth all pos- the big mines aro keeping up tihelr output and the Copper Queen will In crease Its production slightly. At the present time the"Copper Queen is shipping to the smelter fromjCananea company and reduce the cot 4RDAft in SO Ortft tona nf nrn rvoM j..-.t .... . 18 000 to 50,000 tons of ore per month dry welght,"whlch means 60,000 tons wet or about 2,000 tons of ore per day. The development work In the Lowell mine during the shows that the sulpdilde ore is im- proving. The tonnage from this mlne,place and the economizers are being is to be increased and the force ofierected- Two J850 K. W. turbines miners will be increased as rapidly as convenient with the production. Tbe work of laying the track between the "Lowell and the Sacramento is progressing very satisfactorily and , fn U?M l'?Tfe,h.e LoweU "ters are being built and the Imlld and the Hoatson of the S. & P. pro-',. ,. ,,, " . .. I"! perties are completed. At the Math Mag shaft ot the C. & A. tie development work on the "" p'""1 """"y ""pu- cop 1330 level is progressing very at.jper at Cananea is at the rate of 36 isfactorily. At the Cole shaft sulphide 00'000 Ponas. a slight decrease from is being cut on the only drift belne' tev months ago. Besides copper driven on the 1400 leTeL This drift Is being run to the efest of the At the Brlggs shaft the water U draining out at the rate of six motes' per day. The -water drains into tte! Junction There it Is pumped. Con- sidentble development work is uader! way at the Hoatson and the Brlggs.' At the junction a largo body ot sulphide is being opened up between I The consumer would rush prices up by buying in large blocks now, hut It will be better if the same hand-to- mouth policy is followed for It will help the producers to maintain a stea dy price after it has been gradually advanced to say 14 or 15 cents. The main obpect to be achieved In the copper Industry is not only to secure more remunerative prices, but also to prevent the extreme fluctuations that have been such a detriment to both consumer and producer. It will be possible to do this by working down the surplus through actual con- sumpton, but not through Jacking up the price suddenly so as to force a hurried buying movement. The falling off In general business is being felt by the copper producers as well as by the steel makers, and practically all lines of industry. Th cfTect of thl3 will be to prevent the surplus decreasing as rapidly as would otherwise be the case. The outlook for general businessls, however, be coming brighter as the crops are gath ered In, and it Is found that taking the cereals as a whole we shall have a larger output than a ear ago. The Improvement in the condition of the b-n!tor that mIght have ben ot ser,ous .""e"i io me commercial classes, The strongest possible influence In bringing about greater activity in, general business would be a revival of investment confidence. It is ob vious that with railway expenditures for 'ahor and materials cut down by hundreds of millions, that all lines of business must feel the decreased consuming ability, and the railways will not be in a position to go ahead with large expenditures, until they can dispose of bonds at fair prices. problem ot general business Is the problem of the bond market and the speculative situation, when will Investors take hold. It is clear for one thing that a com plete revival of confidence will not take place until the Interstate Com merce Commission has rendered Its decisions in the railway rate Increase cases, and also that the maturity of the corn crop as well as of tte cot ton crop is needed to remove an un certain factor, but investors are be- Binning to realize that not even dl- have yet been Jeopardized and that la view of the very large reutrns SKy, wnne the very object of specu jlatlon is to discount the future i Buildings and New Machinery Point to Larger Production fn the Big Sonora Copper uisirici. " "- D- Ricketts was in Douglas yesterday on his way to Cananea from a trip to El Paso. Dr. Ricketts sble speed at Cananea and that the result of the Installation of new mach inery and methods would both In crease the production of the Greene- of production, a thing Very much de sired owing to the continued low price of copper. A new steel reverbatory building is CONSTRUCTION goes ran ON AT CANANEA past week,golns UD and maWnS 81 progress. tThp frarrtrt of M tntff.tfrt. , mnM n . " "" "" will be placed in this building and the first of these is expected to arrive at Cananea next month and the second In November, Foundations fo.' eight McDoucal , . .- -,- " "r the Oreene-Cananea produced 100,000 shaft-ounces of silver last month. the Junction shaft and the Hoatson on the 1300 level. The sMaft is down 1665 feet and the bottom Is below the lowest level of any shaft in the district. This shaft Is all in hard lime stone and ls the deepest shaft in lime stone in the district. jj . Here Come the -Back from Their Summer Outing stermel m.1 Autumn the ay bflln to shorten and nights grow bleak and chilly the clever little "Bill Raisers" troop back to your home for a win ter's stay. r ' . And you are glad to see them for they bring you cheer, comfort ?'?irt,ajPP'n', WHAT 'F THEY DO RAISE THE LIGHTING BILL A LITTLE OVER THE SUMMER MONTHS'. " " Electric Iron Here trical that BILL saves is an elec- appliance NOT a is RAISER, It you moneyj month in every flHKr3tilllrW ijijljHlKjijijmSP the year. Guaranteed Two Years. Only electric iron with a hot point cool- tached stand, The iron that is soon pays tor itselt, It will pay you to see the famous economizer. King us up today Price $4.50 including 6 feet silk cord and attachment DISBEE IMPROVEMENT CO. TELEPHONE 197 The Hotpoint Electric Iron it just as useful and as big an economizer In winter as in summer. MORE SO. 0MM0I0MMMMMI00NI0MMM Jvk, hfi.i j ..,iini....L i j A Commercial I Vincent's College, Los Angeles Invaluable Every phase of modern commercial life is thoroughly and practically taught by skillful and competent instructors at St. Vincent's College. To every boy or young man who proposes to enter commercial life. M Ifll-AQ til. .ttlitAUt 4 tlll.ftlt.ll Atifl bookkeeping, business management, banking, civil government, com M mercial specialties, shorthand and typewriting, commercial law anc English. The course requires twe years and may be taken separate m. ly or as a part of the High School course. Ttt htiotnnoa llfn Qt V7fnffo .-ti m .u vuw.mi-w ...v u. ....klu.u . m iluencn tint can coma only from ...., r vi . -. i-i v uuiuuu. l uu) uiuy euiei nu vui;c;iiis iiimi lue buveuiu or eignui m. p-rart nnd rpcptw his rnt! nTpfp .tnJlt!o tiyi thrnnph Vlfr srhnni m and collegiate courses. 0 iuv uiuiai lunutrutca aits ui ujb students are admitted. Manly athletics are encouraged, but over- S m indulgence ls not allowed. w WRITE NOW FOR Joseph S. Glass, President Los Angeles, California. $ MIMMtMIf Attturonrwtttttt TYLES ever. Factory equfed with new machinery throughout. ATI meth ods of manufacturing improved 50 style J in direct roortion value too. Smart Stylish and Flex ible to the last degree. The new models on display today. You re cordially invited to inspect them. -r?r SOLE AGENTS FOR BISBEE The Popular Store Telephone 289 Main Street "Bill Raisers" I 111"'"?? Ml handle and at handy, clean and Course at St I ,H,TMn T.W-,rt 3..A r9 M41',n,-W tt n a itrrt n nMttl.. nn9 In. ..uu.vd A.I . V a Jllvatit)C UU IfcT a couezo of such established ret- ... . ; ..--.;. "-.-v.. m uikuic;ab uiucr. uuir uesiraoio a CATALOGUE C M.t D. D letter than y JT 'P i fs if, I. U I 4 r i "- 1 - VcJ ' t , 7 v fl - -a- i , i.