Notice of Scientific Societies. 375 
those engaged in similar pursuits. ‘The Journal of the 
academy, is absolutely indispensable to every American Na- 
turalist. 
In addition to the means of acquiring scientific information, 
afforded by these Societies in Philadelphia, the University of 
Pennsylvania, has a professorship of Natural History, at 
present filled by Mr. Thomas Say. Dr. Hare is professor of 
Chemistry ; Mr. W. H. Keating of Mineraloy, applied to the 
arts ; Dr. Barton of botany, and Dr. Hewson of comparative 
Anatomy. No salaries are attached to these professorships, 
and they are compelled to give at least ten lectures annually, 
The Philadelphia museum was incorporated a few years 
since, and as a corporate body, were privileged to appoint 
Professors. Accordingly the following gentlemen have been 
elected, and have already given several courses of lectures. 
Dr. Troost, on Mineralogy and Geology, Mr. Say, Zoology, 
Dr. Godman, Physiology, and Dr. Harlan, comparative 
Anatomy. It is gratifying to see in one city, these various 
efforts to promote and extend the study of the natural scien- 
ces: may others follow this good example. 
25. Acapemy oF Science anp Literature. Baltimore, 
Maryland. Instituted 1821. Arrangements are making to 
commence a volume of their transactions, 
26. Covumaran Institute. Washington City. Incorpo- 
rated . The President of the U. States is, ex officio, the 
President of this society. Under its auspices a Florula Co- 
lumbiensis has been published, and spirited efforts are now 
making to establish a botanic garden. 
