; 508 



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, 



Soil. 

 •316 

 5-270 

 2710 

 •549 

 •382 

 •090 

 •010 

 •225 

 •344 

 •050 

 •017 



Insoluble in Hydrochloric Acid, 



Silica, 



Peroxide of Iron, 



Alumina, 



Lime, 



Magnesia, 

 Alkalies and Loss, 



64-403 

 •859 



14-380 

 •296 

 •454 

 •385 



Water, . 

 Organic Matter, 



Nitrogen, 



Equal to Ammonia, 



Hygrometric Water, 



2-160 

 7-100 



Mechanical A nalysis. 



Gravel, 

 Soil, 



Coarse Sand, 

 Fine Sand, 

 Clay, _ . 

 Organic Matter, 



Subsoil. 

 •036 

 5-476 

 3-510 

 •492 

 •360 

 •192 

 •079 

 •137 

 •178 

 •070 

 •010 



Total soluble in Hydrochloric Acid, 9 - 963 10 - 540 



66-907 

 1-443 



11-169 

 •364 

 •384 

 •613 



Total insoluble in Hydrochloric Acid, 80-777 80-880 



1-980 

 6-600 



100-00 100-000 



SOIL FROM MR MUSTARD, LEUCHLANDS. 



The soil in this case was a loam of somewhat light texture, 

 containing a considerable quantity of small gravel and much 

 coarse sand, with but a small quantity of clay. The subsoil 

 Mr Mustard describes as an inferior sand, but it is remarkable 

 that the mechanical analysis shows a much larger proportion of 

 finely divided matter — that is, of clay — than the soil itself. The 

 chemical analysis also shows a very close resemblance between 

 both — closer, indeed, than is usually observed. 



