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rjt% 1 r:*f. pT:-. fit- f5 Pit. I ps^Sgman who owns a tractor that devel 'ops 16.horsepower at drive wheel rims finds himself in a disagreeable situa i/i^ijtion when, due to degree of grade or „,^sr«s Character of soil encountered, his ma yV^ijj^hine stalls. He can not very well ".*v:^fcack up, if plowing, to get a neysr start, i'iaj, ^^Therefore, the only alternative is to the plows and leave a blemish in M^^the plowed fields. What he wants, i.i ,i:'and what he is bound to have some t-??V.Ss*iay, is a tractor that will furnish, at S&rtftAaut for a short time, a considerable surplus of power to take him up steep fefs-.grades, through hard spots in lie soil, iuf ilfvjor both at once. ^orse ^as the ability to produce 'surplus power in large amounts for short periods. For a moment, while tugging in the collar, he may pro ,v~ idnce five times the amoufit of energy Jthaif is expected of him at steady gwork. Who has not. seen the powerful §Jtruck horse straining at his load ta O-figet it up the grade to the unloading p^^^^platform While doing this the horse exerting many times" the strength ©w^required of him on the main portion "^C^of the journey over level streets. The M/' ^driver who gets stuck on the road or 'L in the street fails for the entire trip, jW.' -(.^doe to one bad place in the road the same, is true of the tractor that has ivlnot-enough excess power, which may called upon when necessary, to \XjiJ Jcarry over the steep grades or through f§tough hard spots in the sofl. I ^TRYING TO DEVELOP .-A BETTER TRACTOR It is the ambition of progressive ^f^tractor builders of today to produce ^pmachines that, in a degree at least, 'compare with the versatility of the horse. When the farmer understands that he can purchase a tractor that T,,-pforall the working period will develop, ,T l«ay*15 horsepower except for 10 min y- "liputes when he must have 25 horsepow- X-er—that is the tractor he will buy and recommend' to others when he finds &vhe can get tt- 5 Advantages of Surplus Tractor Power Be Sure Your Machine Can Climb Steepest Grade and Go Through Heaviest Soil H. SWEET more tractor' experi ence a man has the more certain he is that he needs surplus power to take him over hard and unexpected places. The There is a wide Tange of soil^con- rdifions and soft contents. It may take tj?^y2^40 pounds pull on the level to op erate a 14-inch plow eight inches deep in gumbo soil, while the same plow 'may be pulled through sand at the same depth oh level ground with a 'pull of 336 pounds. Assuming that the farmer ran from sand to gumbo 5W ^in, the same field, be could not hope toipggg get through his gumbo with power^^-® BROOD SOW POINTERS .-sufficient only for the sand or silfeS|gf The brood sow needs variety in her Sfloam. What he" wants and will have food and exercise. In some day is the latent pbwer to call deep, and it would not be wise to build* a tractor capable of plowing dry gum bo eight inches deep, if the tractor will' be used generally on soil much easier to work. The resistance which soil sets up against being ttfrned over by the plow is determined roughly as follows: The cross-section of the strip plowed, say with a 14-inch jilow set eight inches deep, is 8x14, or 112 square inches of surface of cross-section multiplied by the number of pound? pull required per square inch to move the plow. In the case of gumbo this is 20 pounds hence, your problem is 8x14x20, or 2,240 pounds, and for the three-plow gang the problem is 8x14x20x3, or 6,720 pounds pull. In sand the prob lem is stated thus: 8x14x3x3, or 1,008. Thus we have 6,720 pounds pull necessary for passing through gumbo and 1,008 pounds pull for negotiating sand. -The entire range between these figures may be encountered in the same field of operations, although this is not probable. The man who lives in a rolling country will also find himself con fronted with a real problem in getting his tractor to pull a load while going up hill. A 5 per cent grade, which is equivalent to 3 degrees, will require 300 pounds additional energy to move both tractor and plow up hill, assum ing that the tractor weighs 5,000 pounds and the plows weigh 1,000 pounds. If, then, the user encounters a heavy Btreak of clay, or even gumbo, while-going up hill, the need of re serve power is all the more obvious. A 10 per cent grade, or 5% degrees, means that the tractor must generate 600 additional pounds pull at the drive wheel .rim in order to move forward and on a 30 per cent grade, or 16% degrees, the additional load imposed is 1,800 pounds, or a difference of" more than 12 horsepower from that consumed on level ground, traveling at the average tractor speed. There fore,'the only conclusion that can be reached in the application of tractor power must be able, at least for short periods of time, to generate a much greater amount of power than that at which it is rated. SCREENINGS FOR SHEEP .Since sheep thrive better on a va riety of food, the screenings obtained from wheat and other grains make a particularly: good sheep feed. The weed seedshave about the same com position as other grain and in addition have certain properties which the sheep would miss if fed only one or two kinds of grain. exercise. ^nuwheh he strikes the streak of gum- cultural college, under the direction ^lfbo, so that he can go right through of Professor Shepperd, it was found it without let or hindrance. that sows will readily eat alfalfa hay, It has been fairly accurately esti- and that when this is fed with a mix jtgfSmated that it requires 42 horsepower ture of about half barley and half pull three 14-inch plows eight inches Shorts at the rate of two and one-half f&lgjfdeep through dry gumbo soil, while to J^llgypull the same outfit the same depth through new land or virgin soil con "iS. Ssumes 10 -horsepower. In medium •^8fej?heavy clay the amount required is 17 jgpgjghorsepower: light clay, 13 horsepower "silt loam, eight horsepower, and sand about seven horsepower. It is plain, therefore, that the range of power needed "is wide, indeed, and that the successful tractor must be built to meet this condition, modified to meet engineering relictions. New soil is, of course, not plowed eight inches In Send for our 64 page Book on "Electrical Equipmei for Farm Homes" il *\. experiments conducted at the North Dakota Agri- pounds daily for a 200-pound sow, splendid results have been secured. Equal parts of barley, oats and bra* or shorts also make a very good feed. Exercise is also very important. It was found that the best way to give the grain feed was to sweep the floor clean and scatter the grain feed on it. This results -in the sows "spending hours on their feet getting their feed. Observations indicate that sows fed a variety of foods and given plenty of exercise are not likely to/produce hairless pigs. ft poft the grain in the «acA—doe* not waste it in the wtack All the Grain Is Coming to Yon Every kernel of the grain yon have raised is yours. Then why let any of it go into the straw stack? You-don't have to any more. The Grain-Saving Stacker returns to, the separator and into the sack or w^gonthe grain that is blown to the A Mt^SdTjg^MaChinery C°"' a A. D. Baker Company, Swanton, O, Banting Manufacturing Co.. Toledo, Ohio Emeraon-Brantiiiham Co., Russell Wind Stacker Co., Rockford, 111. Belleville, IB, Helping the Work Along with Electric Light and Power SWANLITE—the Perfected Farm Plant—titvfll the dajr* light hours for (ielrt work and gives speed and comfort to chores after dark. It is simple to operate, costs little and is absolutely safe. Write today for our book and full information. THE NORTHERN ELECTRIC CO. 21 North Sixth Street Minneapolis DISTRIBUTOR FOR BLACK. SWAN COMPANY, Minneapolis, Minn. I The Leader does not knowingly accept advertising from dishonest people. Our advertisers are worthy of support. ess. ii LIST OF MANUFACTURERS *5v United States FARMPtANT Supplied by the belt thrashing machine manufacturer* Demanded by the best farmers and threehermen The Grain-Saving Stacker Delivers It stack in the ordinary proc Demand the Grain-Saving Stacker on the machine for your next job. See that above trade-mark (in colors) is on each side. Write to any of the fist below for full informa tion about this sterling profit-saver. Canada Robt. Bell Engine & Thrahei or a 1 1 1 I in is re he S am or Do in on re he New Hamborgi One. Keck-Gonnerman Co. Mt J. BJ Dore & Fil«, Ltd., T-i Batav^a Machine Co, B^via, I^^^tor M«olacturinf! EJttoS'&T'Ud, Mt. C^eMfg. Co.. Cape Clrarfeaii. Unl£M{g. Co^ Kai^City, Ma Johj^wd^ Thresher Co.. MacWne Clark Machine Co., St.Jchnsvme, Port^gKe&Thre,her MacDonald ^her Co. Ltd., & IndlanapoHSf Ind. Stewart Sheaf Loader Co., Farmers Independent Thi^shes Sawyer-Mawey Co^ Ltd. (U. S. Snipes, Man. Co^ Springfield, IU. Acency), Mol2ne, I1L Wglace Machine Works, Ltd., A. B. Farquhar Co., York, Pa. Southwest Mtg.'Co., OUahoma --S3ex* Ferdiaand Machine Works, City Okla. .Ferdinand, Ind. Swayne* Robinson & Companyt Frick Company, Waynesboro, Pa« Richmond, Ind. Harrison Machine Works, The Westinghouse Company.* Schenectady, N. Y. the Grmn-Saving Stacker Originated With the Indiana Manufacturing iCompany, Indiaiiapolia, Ind., Who Also Originated the Wind Stacker. PAGS THIRTEEN Mention the Leader When Writing Advertise Mfldmay. Co-- MawiUpn, O. Sawyer^M^Co, Ltd..' HamUum, Ont. N' Waterloo Manufacturing Co^ Ltd., Waterloo, Ont. R^Watt Machine Works, Ltd^ Kidgetown, Qnt. George White ft Sons Co.. Ltd., London, Ont.