286 



Mr Connell's Analysis of the 



Phosphate of Lime, with a little fluoride of calcium, 



Carbonate of Lime, 



Silica, ...... 



Bituminous Matter, .... 



1956 



2.48 



.09 



.91 



23.04 



In this analysis alkaline matter in the residual liquid was not 

 sought for ; but another portion of the same coprolite was decom- 

 posed for that purpose by muriatic acid, and after getting quit of 

 the earthy constituents, a small residue of chlorides of potassium 

 and sodium was got, amounting to .59 per cent, of alkalies, which 

 probably were combined, in the matter under analysis, with sili- 

 ceous matter, as chlorine or sulphuric acid were not detected in 

 the coprolites. 



The constituents in 100 parts were thus, 



Phosphate of Lime, with a little fluoride of calcium, 



85.08 



Carbonate of Lime, . 



10.78 



Phosphate of Magnesia, . . Trace 





Silica, ...... 



.39 



Potash and Soda, ..... 



.59 



Bituminous Matter, .... 



3.95 



Animal Matter, . . . Trace 





100.79 



13.76 grains of the other coprolite were decomposed by the 

 same process, the only difference being that the loss of weight by 

 effervescence was not determined, and that the amount of the bitu- 

 minous and alkaline matter was merely estimated from the defi- 

 ciency on the analysis. This coprolite contained in 100 parts, 



Phosphate of Lime, with a little fluoride of calcium, 

 Carbonate of Lime, 



Phosphate of Magnesia, 



Silica, 



Animal Matter, 



Bituminous Matter and Alkalies, 



Trace 



Trace 



83.13 

 15.11 



.29 



L47 



100. 



