335 



gulaily surveyed, and also tlie weight of hay calculated at 

 what it would be per acre. 



iBtPlot. 



Hay, 8J cwt. 

 Idknd, 2-l|perc)i 



Ton Cwt. St. 

 3 IS 4 



2nd Plot. 



Hay, 9j cwt. 

 Land, 27jpcrc]i 



3rd riot. 



Hay. 81 cwt. 

 Land, 25 j percli 



4th Plot. 



&th Plot. 



Cth Plot. 



Hay, 8 cwt. I Hay, fi cwt. I Hay, 5 cwt. 

 Land, 22 jitrch. Land, 21 i perch Und,20 perch. 



Produced at the Rate per Acre, 



Ton Cwt. St. Ton Cwt. St. 

 2 15 1 2 9 7 



Ton Cwt. St. 

 2 18 '2 



Ton Cwt. St. 

 2 4 6 



Ton Cwt. St. 

 2 U 



" The results of the above experiments point out the ad- 

 vantage of the salts of ammonia and potash when combined 

 with dissolved bones, but the nature of the land and crop to 

 which it is applied, must be considered, as it might be posi- 

 tively injurious in some cases. In the instance given above, 

 the meadow was an old one, which had not been broken up 

 for many years, and the grass was close and fine in texture, 

 so that great advantage was gained by the additional silica 

 and phosphate of lime ; but in the case of a new meadow, the 

 hay is often, for the first year or so, too strong and wiry. In 

 such a case, were the same applied, it would be rendered too 

 coarse for the use of horses or cattle; it might, therefore, be 

 found better, for the first two seasons, to apply simply the 

 salts of ammonia, which would increase the sappiness of the 

 plant and the general growth, without adding to the harsh- 

 ness of texture. 



" I hope to be able, on some future occasion, to lay before 

 the Academy the result of further experiments on the sub- 

 ject, and (should time permit me) accompanied with an 

 accurate analysis of the ashes of the plant in each case." 



Mr. Webber made an inquiry as to the cost of the ma- 

 nures mentioned, and suggested that Mr. Knox should be 

 requested to annex to his paper, a statement of the relative 

 expenses of the manure employed. 



Dr. Kane and Dr. Apjohn made some remarks on the 

 general subject. 



VOL. II. 



2e 



