1841.] THE NATIONAL INSTITUTION. 71 



Popular Lectures on Geology, by K. C. Van Leonhard, No. 3, 



1840. — From Br. F. Hall. 

 Tabulas de Don Gabriel Alijandro Real de Azua ; Paris, 1839.— 



From the Author. 

 Poesias diversas, by the same; Paris, 1S39.— From the Author. 

 Treatise on the Uses and Advantages of compressed Peat; two 



copies. — From the author, Alexander S. Byrne. 

 Annual Report of the Geologist of Maryland, 1840.— From the 



author, Dr. Ducatel. 

 Astronoraia Britannica ; folio, 1669.— From Franch Taylor. 

 Notice of the Daguerreotype, by W. E. A. Aikin, M. D., 1840.— 



From the Author. 

 Theory of the Daguerreotype Process, by the same.— From the 



Author. 

 Catalogue of Phenogaraous Plants and Ferns, native or naturalized, 

 growing in the vicinity of Baltimore, by the same. — From the 

 Author. 

 Introductory Lecture delivered before the Medical class of the Uni- 

 versity of Maryland, September, 1840, by the same.- From the 

 Author. 

 Course of Reading and Catalogue of Books, recommended by Chan- 

 cellor Kent, of New- York. — From Samuel Sloan. 

 Constitution, By-Laws, and Regulations of the Mercantile Library 

 Association, Clinton Hall, New-York, March, 1840.— From Sam- 

 uel Sloaii. 

 Nineteenth and twentieth Annual Reports (1840 and 1841) of the 



Mercantile Library Association. — From Samuel Sloan. 

 Address delivered before the Mercantile Library Association, New- 

 York, January 8, 1839, by J. H. Gouslie.— From Samuel Sloa7i. 

 Transactions of the Apollo Association for the Promotion of the 

 Fine Arts in the United States, December 16, 1839. — From F. 

 Markoe, Jr. 

 Mr. Whipple's Report on Mr. Olis's Letter; Boston, 1839.— From 

 F. Murlcoe, Jr. 



The Committee consisting of Col. Abert, Mr. Dayton, and Mr. 

 Markoe, appointed to correspond with the Departments of Govern- 



