PROCEEDINGS OF THE CHEMICAL DEPARTMENT. 



Ill 



Soluble in Hydrochloric Acid 



Silica, 



Peroxide of Iron, 

 Alumina, . 

 Lime, 



Magnesia, . 

 Potash, 

 Soda, 



Sulphuric Acid, 

 Phosphoric Acid, 

 Carbonic Acid' 

 Chlorine, . 



Soil. 

 •132 



3-028 



10-832 



•716 



2-523 

 •284 

 •312 

 •082 

 •051 

 •300 

 •029 



Subsoil. 



•184 



6-930 



8-890 



1-795 



3-476 



•112 



•129 



•034 



•000 



•040 



•101 



100000 100-000 



I shall not attempt on the present occasion to enter into any 

 lengthened discussion of the results of these analyses. The 

 remarks which I made on the soils of the previous year, in the 

 last number of the Transactions, apply with equal force to the 

 present analyses. It is obvious that the amount of produce is 

 not always in accordance with the chemical composition of the 

 soil, but that it must depend in some cases to a great extent on 

 its mechanical texture, or on the state of combination in which 

 the elements exist in the soil. Very remarkable in this respect 

 is the comparison between Mr Mustard and Mr Nicoll's soil. 

 Judging from the analyses alone, the former would be pronounced 

 the better soil of the two, and I think this is the conclusion at 

 which a practical farmer would arrive, from the mere examina- 

 tion of the soil. Certainly the chemist would prefer a soil con- 



