G. W. Robinson 



359 



Table III {continued). Palaozoic Silt Loam. Denbighshire (Silurian). 



Nitrogen 



48 hours' digestion with HCl 



Potash (KjO) 



Phosphoric acid (P2O5) .. 

 Calcium oxide (CaO) 

 Magnesium oxide (MgO).. 

 Insoluble ... 



•408 



•986 

 •205 



67-86 



•468 



1-171 

 •205 



•304 



-873 

 •138 



— 67-7i 



69-29 — 



Soluble inl % citric : 



Potash {K2O) -027 



Phosphoric acid (PjOj) ... -010 



•024 

 •007 



_ 021 



— ^007 



21—2 



