324 
Proceedings of Royal Society of Edinburgh. [sess. 
Table. — Solubility of Carbonate of Lime in Distilled Water, free 
from Carbonic Acid, in Sea Water, and in Solutions of Salts 
entering into the Composition of Sea Water ; 1 litre Water or 
Solution being used at Temperature 10°-15° C. Results in 
Grammes per Litre. 
Distilled Water. 
Sea Water. 
Carbonic Acid 
Water, Atmos- 
pheric Pressure. 
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Calcspar, massive, . 
Do. do. 
Do. do. 
Do. granular, 
Do. fine-grained, 
Do. impalpable powder, 
Do. do. 
Do. do. 
Coral, impalpable powder, 
Amorphous calcium carbonate, . 
0-0146 
0-0251 
0-0285 
0-2480 
120 
46 
96 
2 
2 
2 
2 
0-0046 
0-0075 
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0-0052 
0-0082 
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0-0237 
0-6100 
120 
47 
396 
120 
47 
396 
96 
4 
3 
6 
4 
2 
6 
3 
2 
0-0815 
0-1285 
0-2036 
0-4720 
24 
24 
24 
24 
2 
2 
2 
2 
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NaCl 
MgCl 2 
MgS0 4 
k 2 so 4 
CaS0 4 
XaCl 
MgCl 2 
MgS0 4 
k 2 so 4 
CaS0 4 
Coral, impalpable powder, 
Amorphous calcium carbonate, 
0-0525 
0-0746 
0-0712 
0-0296 
0-0209 
96 
2 
0-0342 
0-6100 
96 
2 
2 
Secretion of Carbonate of Lime by Animals. Part II. By 
Robert Irvine, F.C.S., and G. Sims Woodhead, M.D. 
(Read May 6, 1889.) 
In a paper read before this Society, on May 7, 1888, on the 
“ Secretion of Carbonate of Lime by Animals,” we gave the result 
of experiments made upon domestic fowls, which established the 
fact that they could elaborate carbonate from sulphate of lime in 
the formation of the calcareous covering of their eggs. 
§ 1. The observation of this example of adaptability was followed 
up by experiments continued during the spring and summer of 1888, 
