68 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 
relies for demonstration, and with which he commences his second 
paper, are stated in the following sentence, § 178 of his first paper :— 
‘“‘ The earth is still a cooling globe; and whether we adopt Elie de 
Beaumont’s figures (0°0065), or Thomson’s (0-0085), or J. D. Forbes’s 
(0-007 millimetres) for the thickness of the plate of ice which, 
covering the whole earth’s surface, if melted to water at 32° Fahr., 
would equal the heat lost annually by our globe, the result will be 
that from 575 to 777 cubic miles of ice liquefied to water at 32° 
represents the annual loss of heat at present from the globe.” 
This calculation was worked out in detail by the author, and 
shown to be entirely in error, as, according to the figures quoted of 
the above eminent physicists, an amount of energy represented by 
the melting of from ‘7937 to 1:0387 cubic miles of ice only would 
be dissipated to cause contraction, or only about a 700th part of the 
amount calculated by Mr. Mallet from the figures named. 
The following were exhibited :— 
Specimens of Cores from well-borings, and microscopic sections, 
exhibited by H. J. Eunson, Esq., F.G.S., in illustration of his paper. 
Specimens of Devonian Corals, exhibited by A. Champernowne, 
Esq., F.G.S., in illustration of his paper. 
June 25, 1884. 
Prof. T. G. Bonney, D.Sc., F.R.S., President, in the Chair. 
James Campbell Christie, Esq., Old Cathcart, near Glasgow, was 
elected a Fellow, and Baron C. von Ettingshausen, of Graz, a 
Foreign Correspondent of the Society. 
The following names of Fellows of the Society were read out for 
the second time in conformity with the Bye-laws Sec. VI. B, Art. 6, 
in consequence of the non-payment of the arrears of their contribu- 
tions :—G. P. Bevan, Esq., B. P. Bidder, Esq., W. A. Byrom, Esq., 
J. Coates, Esq., Dr. W. B. Kemshead, Sergeant W. Parsons, R.E., 
T. J. Price, Esq., F. E. Randell, Esq., 8. B. J. Skertchley, Esq., and 
Dr. J. Shaw of Cape Town. 
The List of Donations to the Library was read. 
The following communications were read :-— 
1. “ Additional Notes on the Jurassic Rocks which underlie 
London.” By Prof. John W. Judd, F.R.S., Sec. GS. 
2. “On some fossil Calcisponges from the well-boring at Rich- 
mond, Surrey.” By Dr. G. J. Hinde, F.G.S. 
ae 
