in Agricultural Chemistry. 

 N 1— ROCKS. 



535 



PER CENT. 



Matter or Ash. 



Soluble in Rain Water. 



Abundantly. 



Sparingly, 



el fee 



Total Inorganic Matter. 



3^^ 



^3 



3-4 



12-0 



16-3 

 16-7 



8-0 

 1- 



trace 



0*9 15*7, 1*8 

 2-3 jn-7'l0-4 

 10*0 6-321'4 



0' 

 trace 



3*3 

 42- 



20-4 

 16-8 

 25-9 



1* 



0*6 



27-0 1'5 3'5 

 4-1 20-2 IS'S! - 



always present in every specimen. The authority for their composition is Dr. M'Cuilocli's Treatise on Rocki.< 

 Very fertile.-- — ■/. Soils ou these rocks barren. /(. Soils on these rocks fertile. 



