510 



PROCEEDINGS OF THE CHEMICAL DEPARTMENT. 



Soluble in Hydrochloric Acid. 



Silica, 



Peroxide of Iron, 

 Alumina, . 

 Lime, 



Magnesia, . 

 Potash, 

 Soda, 



Sulphuric Acid, 

 Phosphoric Acid, 

 Carbonic Acid, 

 Chlorine, . 



Total soluble in Hydrochloric Acid, 



8-342 5-929 



Insoluble in Hydrochloric Acid. 



Silica, 



Peroxide of Iron, 

 Alumina, . 

 Lime, 

 Magnesia, 

 Alkalies and Loss, 



Total insoluble in Hydrochloric Acid, 



Water, ..... 

 Organic Matter, .... 



59-922 67-614 



1-339 2-419 



20653 14-836 



•715 1-092 



•430 -750 



•349 -000 



83-408 86-711 



3-100 1-800 



5-150 5-560 



100-000 100000 



Nitrogen, ■ 

 Equal to Ammonia, 

 Hygrometric Water, 



Gravel, 



Mechanical Analysis. 



Soil, 4 



['Coarse Sand, 

 j Fine Sand, 



Clay, 



I, Organic Matter, 



100-000 100-000 



SOIL FROM MR BONE, GREENAN, MAYBOLE. 



This soil was of a rather heavy texture. It contains, accord- 

 ing to the mechanical analysis, a considerable quantity of clay ; 

 but it is obvious that the sand must to a large extent consist of 

 argillaceous matter, for the portion soluble in acids is very large. 

 The next important peculiarity in composition is. the unusually 

 large proportion of magnesia it contains. 



