32 



standard of what the ground would produce without manure, we 

 have a clear gain of 4:2.09 bushels of corn, which at $1 per 



bushel is $42.09 



And 2420 pounds of fodder, which at $8 per ton, . 9.68 



51.77 

 From which if we deduct the value of 6 1-4 cords, of 



manure at 7 dollars per cord, .... 43.75 



Leaves as profit which the manure brought over its cost, $8.02 

 Or if we take that which appeared to be the most judicious appli- 

 cation of the manure, we find a clear profit of $22.73 per acre. 



The value of the crops on the several lots, by the above estimate, 

 is as follows : — 



On No. 1, where the manure was turned under at the first plow- 

 ing, $78,36. On No. 2, on which the manure was plowed in at 

 the second plowing, $82.12. On No. 3, where the manure was 

 cultivated in, $73.15. On No. 4, where the manure was spread 

 upon the surface after planting, $35.43, and where there was no 

 manure, $15,64. 



The calculation of the corn was made bj taking 78 pounds of 

 corn on the cob as equal to one bushel of shelled corn. 



In continuation of the experiment. No. 6 had a small handful 

 of Coe's superphosphate in the hill before planting, which was 

 well mixed with the soil, and also a small quantity spread upon 

 the surface at the first hoeing, and mixed with the soil. No. 7 

 had the same spread upon the surface after planting, and again 

 after the first hoeing. No. 8 had the same spread on the surface 

 after the first, and again after the second hoeing. No. 9 had 

 ashes spread on the surface after the first and second hoeing. 

 The superphosphate used was 800 pounds per acre, and the 

 ashes, 80 bushels per acre. 



No. 6 had 55 pounds of corn on the cob, and 47 pounds of 

 fodder, which is at the rate of 28.20 bushels of shelled corn and 

 1880 of fodder per acre. No. 7 and 8 were so nearly alike that 

 they were harvested and weighed together. They had each 57 1 

 pounds of corn, and 46| pounds of fodder, at the rate- of 29.84 

 bushels of shelled corn and 1860 pounds of fodder per acre. 



Average of the lots 6, 7 and 8, 29.29 bushels of corn, value, $29.29 

 " " " " " 1866lbs.offodder,at$8perton, 7.46 



36.75 

 Deduct as before the produce of No. 5, .... 15.64 



21.11 

 From which deduct the superphosphate, .... 20.00 



And we have as the value of the superphosphate, . . Sl.ll 



