THE 
i? 
7 
AMERICAN JOURNAL 
SCIENCE AND ARTS. 
Prorrssors B. SILLIMAN, B. SILLIMAN, Jr., 
JAMES D. DANA, 
IN CONNECTION WITH 
PROF. ASA GRAY, or CAMBRIDGE, 
PROF. LOUIS AGASSIZ, or CAMBRIDGE, 
DR. WOLCOTT GIBBS, or CAMBRIDGE, 
PROF. S. W. JOHNSON, or NEW HAVEN, 
PROF. GEO. J. BRUSH, or NEW HAVEN. 
SECOND SERIES. 
VOL. XXXVII.—-BAYT, 1864. 
NEW HAVEN: EDITORS. 
1864. 
PPA PPAAP AAA 
PRINTED BY E. HAYES, 426 CHAPEL &T. 
