286 Mr ConneEu’s Analysis of the 
Phosphate of Lime, with a little fluoride of calcium, 19.56 
Carbonate of Lime, , : 3 : 248 
Silica, : ; ; : : . .09 
Bituminous Matter, } 2 ; ‘ 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, ; ; fp , 10.78 
Phosphate of ae aa ; . Trace 
Silica, : : ; 4 2 39 
Potash and Soda, . ' ; é d 59 
Bituminous Matter, : £ : : 3.95 
Animal Matter, . , P 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, 83.13 
Carbonate of Lime, / 3 ; : E59) Gil 
Phosphate of Magnesia, . é Trace 
Silica, ; A : : i : 29 
Animal Matter, . é Trace 
Bituminous Matter and Alkalies, . ; ‘ 1.47 
100. 
