24 Scientific Proceedings, Royal Dublin Society. 
Commission, for the permission to publish the following analysis 
of the “coral sand” :— 
‘October 21st, 1895. 
‘Analysis of sand from Knockboy, county Galway, received 
August Ist. 
‘« Analysis of ‘coral’ from Bantry, received August 6th. 
‘100 parts, air-dried, contain :— 
— Kwocxzoy. Bantry. 
Moisture, .. As a8 00 0:70 1:38 
Iron and Aluminium Oxides, AG “55 “94 
ikimes eee ne ie 2 33°26 44-63 
Magnesia, .. a as 6 28 3°40 
Soda, us a ae 36 1-53 “92 
Potash saan ns He A 1-54 36 
Silica, 56 ie ave we — 23 
Carbonic acid, x ah fi 28°65 37°50 
Phosphoric acid, .. e A trace. 06 
Sulphuric acid, ae ae at trace. 61 
Chlorine, .. es Ne ne 0-18 -76 
Organic and Volatile matter*by difference, 4-49 5°50 
Sand, insoluble matter, Ns b 28-82 3°71 
100-00 100-00 
* Containing Nitrogen, als 0-056 0-078 
“The Knockboy sample contains 59:4 per cent. of carbonate of 
lime, and the Bantry sample 79-72 per cent. of carbonate of lime. In 
the former sample the carbonate of lime is in the form of the débris of 
sea-shells, and in the latter it is in the form of fragments of corallines. 
In both samples I have represented the alkalies as oxides, though 
doubtless they are present to some extent as chlorides. It should be 
noted, too, that the total alkalies, including those in the insoluble sand, 
are given in each case. This introduces an error which falls upon the 
