8o TiMEHRI. 
CERTIFICATB OF ANALYSIS. 
Composition of a sample of soil ; marked Surinam (sample in a not 
labelled bag) ; heavy clay ; sent by the Hon'ble the Government Secre- 
tary ; received November 15th, 1898. 
Moisture retained by air-dried soil, 6*2 0/0. 
1 Root residues and combined water ... ... ... 9*253 
2 Humus ... ... ... ... ... ... '426 
3 Phosphoric Anhydride ... ... ... ... '069 
Sulphuric Anhydride ... ... ... ... '335 
Chlorine... „ ... ... ... ... traces 
Iron Peroxide ... ... ... ... ... 7*398 
Alumina ... ... ... ... ... i6*ii2 
Manganese Oxide ... ... ... ... '107 
. Calcium Oxide ... ... ... ... ... '373 
Magnesium Oxide ... ,., ... ... i*343 
4 Potassium Oxide... ... ... ... ... i'oi4 
Sodium Oxide ... ... ... ... ... '153 
Clay and combined Silica ... ... ... ... 46*231 
Quartz Sand ... ... ... ... ... 17*186 
Remark : —Apparently a sub*soil. 
lOO'OOO 
1 contains Nitrogen ... ... ... ... '035 
2 ff If ... ... ... ••• .•« 002 
I and 2 contain total Nitrogen ... ... ... '097 
3 soluble in 1 0/0 Citric Acid Solution ... ... '012 
4 «• «• It t. t. ••• ••• "002 
