

t 822 ] 



(6) P%Of> Mg 2 P 2 O; from 100 parts of the wet sample='63 

 .'. 222 : 142:: -63 : amount of P 2 O 5 in the wet sample 



.*. P 2 Os in the wet sample = -^ - = '403 

 .". P 2 Os in the dry soil= 



97-51 : ioo::-403 : x 4Q3xioo_ 



97-5i [ A 



(7) Nitrogen in the wet sample - '174 % 



.*. In the dry soil, 



97-51 : ioo::-i74 : x _ -174x100 _ 0/ 



"Irsi" =I?8 /c 



or calculated as NH 3 . 



N : NH 3 :*.'i78 : NH 3 in the sample 

 14 : i7::-i78 : x .'. *=-23% 



(8) Soluble salts In the wet sample '615% 



/. In the dry soil= 



97-51 : 100:: -615 : x _ -615x100 , 0/ 



X 1 "03 /o 



1,404. The following, therefore, is the result of the analy- 

 sis of the sample of soil : 



Moisture ... ... 2-49 % 



Organic matter &c.* ... 4-95 



Sand&c. ... ... 86-08 



Calcium carbonate!.. . ... 1*07 ,, 



Potash ... ... ... '26 



Phosphoric anhydride ... '41 ,, 



Undetermined ... ... 4*474 



lOO'OO 



Soluble salts ... '63 % 



* Containing N calculated as NH 3 ... '23 % 

 t Calculated as CaO ... ... -60 , 



