By Edward Solly, Esq. 



75 



The proportion of grain to the whole produce therefore was as 

 1940 to 10000. One thousand seeds weighed 619 grains. The 

 standard measure full weighed 4096 grains, hence the bushel would 

 weigh 58£ lbs. 



19. Sulphate of Magnesia, Epsom Salts. This salt was applied 

 at the rate of 3 cwt. per acre. Its value is about £12. per ton, 

 hence the quantity used would cost £1. 16s. per acre. The pro- 

 duce was 



Straw 37 11 2 13 100 



Chaff 6 12 9 71 



The proportion of grain to the whole crop therefore was as 2125 

 to 10000. One thousand seeds weighed 671 grains. The standard 

 measure full weighed 4170 grains, hence the bushel would weigh 

 59|lbs. The effect produced by this salt on the growth of the 

 wheat appeared to be small, the plants looked very little better 

 than those in the standard square ; the straw appeared to be rather 

 stronger. 



20. Sulphate of Magnesia and Silicate of Potash. These sub- 

 stances were applied at the rate of 3 cwt. of the former and lj cwt. 

 of the latter per acre. The produce was 



Whole crop per rod 58 13 per acre 4 ^4 ^6 



Straw 43 8 3 2 15 



Chaff 3 4 38 



The proportion of grain to the whole crop therefore was as 

 2091 to 10000. One thousand seeds weighed 624 grains. The 

 standard measure full weighed 4106 grains, hence the bushel would 

 weigh 58| lbs. 



21. Sulphate of Potash. This salt was applied at the rate of 

 3 cwt. per acre. Sulphate of Potash is the residue of the ordinary 

 process for the manufacture of Nitric Acid, in which Nitrate of 

 Potash is decomposed by Sulphuric Acid. The price of the Sul- 

 phate varies, in part depending on the price of the Nitrate, its 



