277 



Journal of Agriculture, and the Transactions of the Highland and 

 Agricultural Society of Scotland. N. S., No. XLVII. 8vo. 

 From the Society. 



Almanaque Nautico para el afio 1855. (San Fernando.) 8vo. — 

 Froin the Marine Observatory of San Fernando. 



Jahrbuch der Kaiserlich-Koniglichen Geologischen Reichsanstalt 

 1853. No. 3. (Juli, August, September.) 8vo. — From 

 the Institute. 



Transactions of the Royal Scottish Society of Arts. Vol> IV., 

 Part 2. 8vo. — From the Society. 



Proceedings of the Royal Society. Vol. VI., Nos. 91-101. 8vo. — 

 From the Society. 



Boston Journal of Natural History, containing Papers and Commu- 

 nications read before the Boston Society of Natural History, 

 and published by their direction. Vol. VI., No. 3. 8vo. 



Proceedings of the Boston Society of Natural History. Jan. 1, 

 1851— Nov. 16, 1853. 8vo.— -i^rom the Society. 



Proceedings of the American Academy of Arts and Sciences. Vol. 

 III., pp. 1-104. 8vo. — From the Academy. 



Monday, 16th January 1855. 



Dr TRAILL, Curator of the Library, in the Chair. 



The following Communications were read : — 



1. Some additional Experiments on the Ethers and Amides 

 of Meconic and Comenic Acids. By Henry How, Esq. 

 Communicated by Dr Anderson. 



The author commenced by alluding to his analysis of amidome- 

 conic acid in a previous paper, and to the objections urged against the 

 formula he had assigned to it. 



o 



By referring to his former analyses, and to a later one, he showed 

 that the empirical formula of the acid could not be that suggested 

 by Messrs Wurtz and Gerhardt, but that his results could only lead 

 to that which he had formerly given, namely— 



yoL, III. z 



