APPENDIX. 2G1 



GUANO. 



ANALYSE! BY DR. J. DAVY 



Soluble matters, oxalate, phosphate, and chloride of ammonium, 

 and animal matters 



Incombustible and insoluble, chiefly phosphate of lime and of 

 magnesia 



Incombustible, soluble, chloride, carbonate and sulphate of pot- 

 ash 



Combustible, sparingly soluble, chiefly urate of ammonia 



Expelled by drying ; water and carbonate of ammonia . 



Davy found no Urea and no Oxalic Acid. 

 GUANO, AFRICAN. 



ANALYSED BY FRANCIS. 



Volatile salts, as oxalate and carbonate of ammonia, sal ammoniac, and combusti- 

 ble organic matter, containing 550 per cent, of humic acid, uric acid, and 



extractive matter, and 970 per cent, of ammonia 4259 



Water 2713 



Phosphate of lime and magnesia 22-39 



Sand • 081 



Alkaline salts, chiefly phosphate, chloride, and a little sulphate of potassium . . 7-08 



100 

 (Lond., Edin., and Dubl. Phil. Mag., 1844, May and June.) 



ANALYSIS OF A BROWNISH YELLOW GUANO. 



BY OELLACHER* 



Sal ammoniac 2"25 



Urate of ammonia . 12-20 



Oxalate ditto 17-73 



Phosphate ditto 690 



Carbonate ditto 0-80 



Humate ditto 106 



Phosphate of ammonia and magnesia .... 1163 



Phosphate of lime 20-16 



Oxalate of ditto 1-30 



Carbonate of ditto 1-65 



Chloride of sodium 0*40 



Sulphate of potash 400 



of soda 4-92 



Waxy matter 0-75 



Sand 1-68 



Water 4-31 



Undetermined organic matter ... ... 826 



10000 

 * Phannac. Centralblatt., 1844, p. 17 — Buchner, Repertorium, vol. xxxii., pp. 289— S20, 



