DONATIONS. 



1798. DONORS. 



April 6. Author, 



April 20. Mr. Jefferfon, 



May 1 8. Mr. Niemcewilz, 



June I. Author, 



Nov. 23. Mr. Wm. Jones, 



do. 



do. 



Presents. 

 and Medical Science, by 

 J. C. Lettfom, M. D. Lon- 

 don. 



A hand threfliing machine, 

 invented by Thomas C. 

 Martin, Virginia. 



A gold coin of Poland, coin- 

 ed in the laft year of its 

 independence. 



A Sermon, delivered May 9, 

 1798, by James Aber- 

 crombie. 



EfTays on the Microfcope ; 

 containing a practical de- 

 fcription of the moft im- 

 proved microfcopes ; a 

 general hiftory of infedls, 

 &c. with a eoncife cata- 

 logue of interefting objedts 

 when under the micro- 

 fcope, &c. by the late 

 George Adams: with con- 

 fiderable additions and im- 

 provements, by Tr. Kan- 

 macher, P. L. S. 410. 



Alfo, a volume of illuftra- 

 ting plates, fol. London. 



Geom.etrical and Graphical 

 EfTays, containing a gene- 

 ral defcription of mathe- 

 matical inftruments, &c. 

 by 



