APPENDIX. 



259 



PERUVIAN GUANO. 



ANALYSED BY DR. URE. 



Nitrogenised organic matter, including urate of ammonia . . 50 



Water 11 



Phosphate of lime 25 



Phosphate of ammonia and magnesia, phosphate of ammonia, 



oxalate of ditto, containing 49 per cent, of ammonia . 13 



Silica ] 



100 



{Lond., Edinb., and Dubl. Phil. Mag., 1844, May and June.) 



AFRICAN GUANO. 



ANALYSED BY DR. URE. 



Saline and organic matter, containing 10 per cent, of ammonia . . .50 



Water 215 



Phosphate of lime and magnesia, also of potash 26 



Silica 1 



Sulphate of potash and chloride of potassium 1-5 



100 



{Lond., Edinb., and Dubl. Phil. Mag., 1844, May and June.) 



AFRICAN GUANO. 



ANALYSED BY DR. URK. 



Combustible animal matter 37 



Ammonia, chiefly as phosphate 9'5 



Alkaline and earthy phosphates 185 



Alkaline, chiefly potash salts 6-0 



Silica 05 



Water 285 



100 



GUANO. 



ANALYSED BY KERSTEN.* 



T. 



Peru. 



Combustible matter, of which in No. I. 3 2, in II. 32, 

 and in III. 6.5 per cent, of humic acid, and of uric 



acid in I. 27 per cent, in the others, traces . . 36 - 5 



Ammonia 86 



Phosphate of lime and magnesia 205 



Phosphate, sulphate, and chloride of potassium and 



sodium 65 



iiuarzy sand . 1-5 



Water . . 260 



100 



II. 



Peru 



350 



75 



225 



8-2 

 20 

 250 



III. 



Africa. 

 Island of 

 Ichaboe. 



95 

 175 



73 

 13 



250 



100 



* Journal of Practical Chemistry. Vol. xxxiv,, p. 361. 



