158 



The African Repository and Colonial Journal. Vol. XXI. April, 

 1845. No. 4. 8vo. — From the American Colonization So- 

 ciety. 



Twenty-seventh and Twenty-eighth Annual Reports of the Superin- 

 tending Committee of the London Provident Institulion, 1843, 

 1844. — From Wm. Vaughan, Esq. 



Letter to the Secretary of the Treasury, communicating a Report of 

 Chemical Analyses of Sugars, Molasses, dec. ; and of Researches 

 on Hydrometers, made under the Superintendence of Prof. A. D. 

 Bache. By Prof. R. S. M'CuWoh.— From the Author. 



Catalogue of Plants, collected by the Botanical Department of the Pro- 

 vidence Franklin Society, principally in Rhode Island, in 1844. 

 Arranged by S. T. Olney. 8vo. 



Directions in regard to the Operations of the Coast Survey, for 

 1845-46. Approved by the Treasury Department, March, 1845. 

 — From Professor A. D. Bache. 



Letter to the Secretary of the Treasury, communicating a Report of 

 the Superintendent of the Construction of Standard Weights and 

 Measures. — From the same. 



The Medical News and Library. Vol. III. May, 1845. 8vo.— 

 From Messrs. Lea Sf Blanchard. 



Extrait du Catalogue General de Hector Bossange. Paris, 1845. 

 8vo. — From Clement C. Biddle, Esq. 



ADDITIONS TO THE LIBRARY BY PURCHASE. 



The London, Edinburgh, and Dublin Philosophical Magazine, and 

 Journal of Science. Third Series. Nos. 154 to 171, inclusive. 

 December, 1843, to February, 1845. 8vo. 



The Edinburgh New Philosophical Journal. Conducted by Profes- 

 sor Jameson. Nos. 71 to 75, inclusive. January, April, July, 

 October, 1844. January, 1845. 8vo. 



Astronomische Nachrichten. Nos. 529, 530. 4to. 



On motion of Dr. Dunglison, Mr. Fraley was appointed to 

 prepare an obituary notice of Mr. Wm. H, Keating. 



Mr. Lea read a continuation of his paper on Fresh Water 

 and Land Shells, which was referred to a Committee, consist- 

 ing of Dr. Griffith, Dr. Hays, and Mr. Ord. The paper con- 

 tains descriptions of twenty-six new species of the genera 

 Unto, Margaritana and Anodonta; twenty-three of Me- 



