AMERICAN JOURNAL 
SCIENCE AND ARTs, 
CONDUCTED BY : 
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. XXXVI.—NOVEMBER, 1863. 
NEW HAVEN: EDITORS, 
(1863. 
PRINTED BY E. HAYES, 426 CHAPEL S87. 
MissoOuUR! BOTANICAL . 
+» GARDEN LIBRARY - 
