42 PROCEEDINGS OF THE AMERICAN ACADEMY 



Smyth, F. R. S. S. L. & E., F. R. A. S., and H. M. Astronomer for 

 Scotland. 4to pamph. London and Edinburgh. 1858. 

 Royal Society of Sciences, Gottingen. 



Nachrichten von der Georg-Augusts-Universitiit und der Kon. 

 Gesell. der Wissenschaften zu Gottmgen, vom Jabre 1858. 16mo. 

 Gottingen. 1859. 

 American Philosophical Society. 



Proceedings. A^ol. VII. No. 61, Jan. - June, 1859 ; No. 62, July - 

 Dec. 8vo. Philadelphia. 1859. 



Transactions. Vol. XII. Pt. 2, (N. S.) 4to. Philadelphia. 

 1859. 

 Isaac Lea, LL. D. 



Observations on the Genus Unio, together with Descriptions of 

 New Species, their Soft Parts, and Embryonic Forms in the 

 Family Unionida3. Vol. VII. Pts. I. and II. 4to. Philadelphia. 

 1859. 



Descriptions of Eight New Species of Unionida^, from Georgia, 

 Mississippi, and Texas, etc., etc. 8vo pamph. Philadelphia. 1860. 

 Royal Society, London. 



Philosophical Transactions for the Year 1858. Vol. CXLVIIL 

 Parts I. and II. 4to. London. 1858 - 59. 



Proceedings. Vol. IX. Nos. 32 - 34 : Vol. X. Nos. 35, 36. 8vo. 

 London. 1859. 



List of Fellows of the Society, 30 Nov., 1858. 4to jmrnph. 

 London. 



Address of the Right Hon. the Lord Wrottesley, &c., &c., &c., 

 the President, delivered at the Anniversary Meeting of the Royal 

 Society, on Tuesday, November 30, 1858. 8vo pamph. London. 

 1858. 



Report of the Joint Committee of the Royal Society and the 

 British Association, for procuring a Continuance of the Magnetic 

 and Meteorological Observations. 8vo pamph. Leeds. 



Astronomical and Magnetical and Meteorological Observations 

 made at the Royal Observatory, Greenwich, in the Year 1857 ; 

 under the Direction of George Biddell Airy, Esq., M. A., Astrono- 

 mer Royal. 4to. London. 1859. 



Ramcliundra. A Treatise on Problems of Maxima and Minima, 

 solved by Algebra. Reprinted by Order of the Hon. Court of 



Directors of the East India Co under the Superintendence 



of Aug. De Morgan. 8vo. London. 1859. 



