79 



The bone had been applied in both these cases, as I think, 

 on the 28th of May, and I selected lots for the experiment, 

 where no difference was perceptible in the height or thick- 

 ness of the grass. 



ON BARLEY. 



One rod with the bone, 18 bushels to the acre, weighed 20f 

 pounds ; the adjoining rod, with no bone, 30| pounds. 



The barley was ripe and was cut and weighed, with the 

 straw, on the 26th of July. I find I have lost the date of 

 applying the bone to both the barley and grass, but believe to 

 have been, as above, on 28th of May. 



ON POTATOES. 



25 bushels of bone meal was applied to the acre on the 

 6th of June, being one half a pint to the hill. I ought to say 

 that in the case of both corn and potatoes the soil was removed 

 from the plant with the hoe, the bone then applied and cover- 

 ed. The potatoes were dug in my absence, and not weighed 

 but measured — fifteen hills with hone yielding three-fourths of a 

 peck more than the adjoining row without. This is equal to 

 40 bushels per acre — the 25 bushels of bone costing, how- 

 ever, $57.00. 



ON ONIONS. 



Flour of bone was used at the rate of 39 bushels per acre, 

 hoed in by the side of the row just as the onions were break- 

 ing ground. These, also, were harvested in my absence, but 

 as no difference was perceptible, they were neither measured nor 

 weighed. 



ON CARROTS. 



Bone applied, 39 bushels to the acre, and in the same man- 

 ner as to the onions. The yield was 29| tons per acre with 

 bone, and 23 1-5 tons without bone. Difference 6 3-10 tons. 

 At $10 per ton the produce in the first case, per acre, would 



