_ MARCH, 1853. 
AMERICAN JOURNAL 
SCIENCE AND ARTS. 
CONDUCTED BY : 
essors B. SILLIMAN, B. SILLIMAN, Ja. [f  . 
AND 
JAMES D. DANA. 
tat AIDED BY e 
Da. WOLCOTT GIBBS, or New York, 
IN PHYSICS AND CHEMISTRY, 
er AND 
_Pror. ASA GRAY, or CamBRiDGE, 
; IN BOTANY. 
oe SERIES. 
“No. 444 MARCH, 1853. 
WITH A MAP. 
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