Show DRAFT OF 3 leeport of trial THAI 31 itada de at t tile lie and mid ut utah uth h E station stations bulletin no 13 of the missouri agri cult college and no 4 of the utah experiment station are the sources of the following summary which from its p practical tactical rac nature can call hardly fail to be in te resting to farmers 1 wheels with felloes one and a half inches wide drew on moist but burclow close clow blue grass sward award per cent harder than wheels with felloes three inches wide wid edid did on ft a dirt road slightly moist tho the former drew per cent heavier than the latter 2 draft on moist roads according to degree of moisture is harder than draft on hills varying in rise from one foot in eight to one foot in twenty 3 draft on a plank road is about one fiftieth of the load and not one seventh of the draft found on a mud road in its ordinary condition after a rain 4 A load over the hind wheels drew 10 per cent easier than over the front fron t wheels the hind wheels drew 93 10 per cent easier over an obstacle three inches high when the attachment was made to each set of wheels but by the usual hitch drew harder on oil account of the downward incline of the reach connecting them with the front wheels 0 5 lowering the reach on the hind wheels decreased draft 6 wagons draw ea easier jer when the draft has an upward incline and harder when horses are hitched on the end of the pole 7 loose burrs reduce the draft 45 per cent 8 lard frazers fragers Fra axle grease cylinder oil and castor oil decreased draft in the order named 9 0 the load that could bo be drawn on varying roads tested varied from 1310 pounds on a loose gravelly road just made to 7 pounds on a good gravel road and to oyer over pounds on a plank road other varieties of roads were tested as well as the influence of grade draft varied on grades very closely to their theoretical variations i nothing could lie written that would more forcibly emphasize the importance of df a better construction of the country roads the varying amounts of power required to move a load on roads according to the smoothness or hardness lard ness of their surfaces or otherwise should in cite all interested to a general movement for their improvement the advantage of wide over narrow felloes ia is worthy of if note again the comparative value of the substances named as lubricants is not commonly estimated in the order above given |