158 



Report on Trials of Plows. 



lightest by tbirty-iive per ceut, and the average of tbe five by 

 eighteen per cent. 



The trials made by this Society in 1850 were on stubble land, 

 the soil being a stiff loam inclining to clay, mingled with stones 

 of various sizes, near Greenbush. The following table shows the 

 differences in the draught of the plows tried at that time: 



PLOWS. 



Pounds. 



Per cent, 



Wilkie's Scotch, A. Fleck 



Subsoil and sod, French & Smith 



Washington Co., Iron Beam, D. Eddy & Co 



John Randerson's 



Miner & Horton's, Peekskill 



Starbuck & Co., Trojan 



P. Auld, Improved Scotch 



Prouty & Mears, Centre Draft, No. 51 



Bosworth, Rich & Co., Iron Beam, D 



R. R. Tench & Co., Empire, A3 



H. L. Emery, Albany 



W. W. Chase, Amsterdam, No 6 



E. J. Burrall, Shell-wheel 



Prouty & Mears, Connecticut Valley 



Average 



407 



19 



The furrow slice in the above trials was seven inches by ten 

 inches. 



In this series of experiments we find the difl'erence between 

 the heaviest and the lightest plow is equal to fifty-three per cent, 

 and the difference between the lightest plow and the average 

 draught of them all was nineteen per cent. 



Summing up tha results of the three sets of experiments, we 

 have: 



Mr. Pusey's Experiments — Maximum difference, 78 1 per cent; 

 average difference, 23^ per cent. 



Mr. Morton's Experiments — Maximum difference, 35 per cent; 

 average difference, 18 per cent. 



New York State Agricultural Society's Experiments — Maximum 

 difference, 53 per cent; average difference, 19 per cent. 



Average of the three experiments — Maximum difference, 55| 

 per cent; average difference, 20 per cent. 



Which may be taken as the best answer that can yet be given 

 to the second question. 



The third question which we have proposed is, " What propor- 

 tion of the power required by a plow is used by the sole? What 



