25 
Secrion IV. Mechanics. 
J. E. Hinearp. D. H. Manan. 
FarrmMan Rocers. JOSEPH SAXTON. 
J. F. Frazer. Montaomery C. Metres. 
And under Art. I., Sect. 6, 
BENJAMIN PEIRCE. J. G. BARNARD. 
‘ JosepH Henry. F. A. P. BARNARD. 
Section V. Ohemistry and Mineralogy. 
Wotcorr Gress. BENJAMIN SILLIMAN, JR. 
Samvue.t W. JOHNSON. 
CLASS OF NATURAL HISTORY. 
Section I. Geology and Paleontology. 
‘ J. P. Lester. Leo LesQuerEvx. 
; James Hatt. J. S. NEWBERRY. 
J. D. WHITNEY. 
And under Art. I., Sect. 6, 
ArnoLp Guyot. 
Section Il. Zoélogy. 
Lovis AGAssiz. James D. DANA. 
Spencer F. Barrp. ALexanpeEr E. R. AGassiz. 
JARED P. KirtLanp. Joun L. Le Conte. 
‘ Section III. Botany. 
Grorce ENGELMANN. JOHN TORREY. 
And under Art. L., Sect. 6, 
Leo LesQuEREUXx. 
3 
