146 



Dec. 18th, 1854, acknowledging the donation of the Proceedings 

 of this Society, Vol. V., pp. 16 to 80 inclusive; — from the 

 Naturhistorischer Verein der Preussichen Rheinlande und West- 

 phalens, dated Bonn, Oct. 30th, 1854, acknowledging the dona- 

 tion of the Boston Journal of Natural History, Vol. VI, Nos. 1, 

 2, 3, and Proceedings, Vol. IV. pp. 1 -384 ; — from the Bibli- 

 othekariat der K. Bayer. Akademie der Wissenschaften, dated 

 Munich, July 30th, 1854, presenting its own and other publica- 

 tions, requesting that deficiencies in its copies of this Society's 

 publications may be made up to it, and asking for duplicate 

 copies of publications presented hereafter; — from the Societe 

 de Physique et d'Histoire Naturelle de Geneve, dated November 

 9th, 1854, requesting a continuance of the exchange of publica- 

 tions with that Society, which has been interrupted for some time 

 past; — from W. H. B. Thomas, Esq., of Philadelphia, dated 

 Nov. 28th, 1854, proposing an exchange of books, &c. 



The letter from the Bavarian Academy, at Munich, was 

 referred to the Publishing Committee, with authority to act 

 in the premises. 



Dr. A. A. Hayes presented specimens of the famous 

 Cannel Coal, from Torbanehill, Scotland, known as the 

 Boghead Gas Coal ; also a specimen of Cannel Coal from 

 the Straitsville Mines, in Ohio. He remarked that it is 

 one of the most bituminous of Cannels. In fracturing it, 

 it often breaks into large rectangular masses, so that it has 

 been quarried for building purposes. Its exterior is brown, 

 sometimes yellowish, and it resembles somewhat trap rock. 



February 7, 1855. 



The President in the Chair. 



The President exhibited the portion of a lower jaw of a 

 Mastodon giganteusy containing a supernumerary tooth, 



