Practical Questions in Plows and Plowing. 161 



The increased average draught of the first inch is 2.71 per 

 cent; of the second inch, 16.29 per cent, and of the third, 15.91 

 per cent. Average, 11.63 per cent. 



Mr. Pusey made a second experiment to determine this point a 

 few days afterwards upon a poor, moory soil, with Ferguson's 

 Scotch plow, with the following results: 



The experiments on this point made by Mr. Morton are giveu 



in the following table: 



11 



