88 



The totals of "ash" do not agree with the potash and phos- 

 phoric acid, as it contains also soda, magnesia, lime, &c. 



Dr. Bernard Dyer, consulting chemist and district analyst to 

 many Agricultural Societies, in conjunction with F. W. E. Shrivel, 

 F.L.S., made many experiments near Hadlow, in Kent County, at 

 the request of the Permanent Nitrate Company, and where I 

 mention "Hadlow" their experiments are given. The field chosen 

 was ordinary clay loam in low agricultural condition, just suffi- 

 ciently manured to enable it to bear fair crops in ordinary rotation. 

 After a crop of wheat it was, at the close of 1894, ploughed and 

 well dug on receiving 2J tons of lime per acre, which was repeated 

 a year later. The four seasons were very dry. For the several 

 crops were then in each case six plots marked out. They were 

 one-fiftieth of an acre each, or rather more than three square 

 perches, together one-eighth of an acre. Their manurial treat- 

 ment was : 



F. 50 loads (about 25 tons) of London dung. 



E. 25 loads (12 j tons) of London dung. 



A. 25 loads, with phosphates and potash (or \ of a plot salt) and 



1 cwt. of nitrate of soda. 



B. 25 loads, with phosphates and potash (or i of .a plot salt) and 



2 cwt. of nitrate of soda, 



D. 25 loads, with phosphates and potash (or \ of a plot salt) and 

 4 cwt. of nitrate of soda. 



C No dung, phosphates and potash, 1 cwt. nitrate of soda. 

 Phosphates were the first year 8 cwt, per acre, one-half super- 

 phosphate and one-half Thomas phosphate (I presume applied at 

 different times). The second year, 4 cwt. superphosphate; thc- 

 third year, 6 cwt. superphosphate ; the fourth year, 7 cwt. Thorms 

 phosphate. Guano or bonedust was not used, as they contain also 



