44 



CHEMICAL MANUEES. 



its slow precipitation by the ammonia liberated, hence the ex- 

 planation of the stalagmites and the hydration so conducive to 

 the solubility of the manure in the soil. 



TABLE XXXIV.— ANALYSIS OF .JARVIS GUANO. 



Pel' cent. 

 Phosphate of lime •SC?iO,F^O- = 17-397 , 33-423 



2CaO,Po05 = 16-026/ 

 Phosphate of magnesia 

 Phosphate of iron .... 



Sulphate of lime ..... 

 Sulphuric acid, potash, chlorine ) 

 Organic matter and water j 



1-24L 



0-160 



44-549 



20 880 



100-2.59 



The following are some analyses of phospho guanos by Dr. H. 

 Gilbert :— 



TABLE XXXY.— ANALYSES OF FANNING ISLAND GUANO. 



