78 



The above result would give, to the acre of 3240 hills, as 

 follows, viz : 



No. 1, 4927 pounds. 



No. 2, 4443 « 



No. 3, 4511 «' 



What precise amount of shelled corn this weight of ears 

 would give, I have not determined ; it was, however, quite 

 unripe, and unfit for shelling or use. 



The difference in favor of the bone in the case of No. 1, 

 there being 17 bushels of bone to the acre, is 484 pounds of 

 corn in the ear, more than where no hone was used, and 416 

 pounds more than where half the quantity was used. 



Suppose 70 pounds of corn in the ear, in the state which I 

 found it in at harvest, to make a bushel of shelled corn, then 

 an acre, using 17 bushels of bone, would produce 6 6-7 bush- 

 els of corn more than where no hone was vsei ; and an acre with 

 8.43 bushels of bone would yield 5 7-7 bushels of corn more 

 than where none was used; and what increases the perplexity, 

 17 bushels of bone to the acre produces only one bushel of 

 corn per acre more than half that quantity does. 



Now for the cost. A bushel of bone flour will weigh, I 

 believe, 76 pounds, and 17 bushels at three cents per pound 

 will cost $38.76 ; so that 6 6-7 bushels of corn will cost that 

 sum, viz : $38.76. For transportation from Boston, it will be 

 perceived, I have reckoned nothing, though 50 cents would 

 be, I think, the true expense. 



BONE FLOUR UPON ENGLISH GRASS. 



One square rod with bone, at the rate of 18 bushels per 

 acre, yielded 69f pounds of grass cut and immediately weigh- 

 ed, July 9th. The adjoining rod, without bone, cut and weigh- 

 ed on the same day, weighed 73^ pounds. 



The same experiment was made on lower land, some eight 

 to ten rods distant, and cut July 27th. The rod with bone, 

 as before, yielded 33 pounds; the adjoining rod, without bone, 

 yielded 36 pounds. 



