﻿240 PROCEEDINGS OF THE [Oct., 1857. 



subject ; thus constituting an intermediate stage between them 

 and the adult Cunina. 



SEPTEMBER 15th, 1857. 

 W. Wragg Smith, Esq. in the chair. 



Prof. McCrady presented a specimen of Aglaophenia cris- 

 tata, found on Sullivan's Island Beach. 



The following gentlemen nominated at a previous meeting 

 were elected Correspondents: 



Dr. Joseph Hyrtl, of Vienna. 



Dr. William Peters, of Berlin. 



Dr. D. G. Fluegel, of Leipsig. 



OCTOBER 1st, 1857. 



Robert Hume, Esq., in the chair. 



The proceedings of the Boston Society of Natural History 

 vol. vi. pp. 209, 240, were received. 



Wm. Sharswood, Esq., presented Electrical Experiments by 

 G. W. Francis, London. Laws of the Royal Scottish Society 

 of Arts. 



A communication from Wm. Sharswood, Esq., of Phila- 

 delphia was read by the correspondtng Secretary, On the Ther- 

 mo-electric properties of Aluminum. This paper was subse- 

 quently withdrawn by the author, in order to its being pre- 

 sented under a new form. 



Samuel Morgan, Esq., nominated at previous meeting, was 

 elected a correspondent of the Society. 



OCTOBER 15th, 1857 

 Prof. H. R. Frost, presented the Dictionnaire des Sciences 



Naturelles, 42 tomes 8vo. Paris et Strasbourg. 



Commander Thos. J. Page three charts of the survey 



of the river Paraguay, South America. 



The President read the following paper entitled — 



