THE NATIONAL INSTITUTION. 
77 
1841 .] 
tures and geological structure of the country; constructed in 1836, 
and engraved in 1837-8; colored and mounted on rollers.— From 
Capt. George W. Hughes , U. S. Top. Engs. 
Box of Shells.— From R. T. Brumby , Tuscaloosa , Alabama. 
For the Library. 
Medical and Physical Researches, by R. Harlan, M. D., 8vo.; Phila¬ 
delphia, 1835.— From Wm. Maclure. 
Opinions on various subjects, dedicated to the Industrious Producers, 
by W. Maclure, 2 vols. 8vo.; New-Harmony, 1831.— From Wm. 
Maclure. 
Memoir of Lewis David von Schweinetz, by Walter R. Johnson; 
Philadelphia, 1835.— From the Academy of Natural Sciences , 
Philadelphia. 
Biographical Sketch of the late Thomas Say, Esq., by Benjamin H. 
Coates, M. D.; Philadelphia, 1835.— From the same. 
Notice of the Academy of Natural Sciences of Philadelphia; fourth 
edition ; Philadelphia, 1837.— From the same. 
Act of Incorporation and By-Laws of the Academy of Natural 
Sciences of Philadelphia; Philadelphia, 1840.— From the same. 
The St. Louis New Era, 1st March, containing a table of Meteoro¬ 
logical Observations.— From Dr. B. B. Brown y of St. Louis. 
Address on the study of Natural History, by John G. Morris.— From 
the Author. 
The Paradise within the reach of all men, by J. A. Etzter; Pitts¬ 
burgh, 1833.— From the Author. 
The New World, or Mechanical System, by the same.— From the 
Author. 
Remarks on the Report of Captain Chappell on the Archimedean 
Screw, by A. S. Byrne; 50 copies.— From the Author. 
Reports of cases treated in the Will’s Hospital for the Blind and 
Lame, during three months of 1838, with Observations by Dr. 
Hays, one of the Surgeons of that Institution.— From Dr. Isaac 
Hays } of Philadelphia. 
Description of the inferior Maxillary Bones of Mastodons, in the 
Cabinet of the American Philosophical Society, with remarks on 
