Von. XIX. MARCH, 1855. No. 56. 
Published the first day of every second month, price $5 per year. 
% THE 
AMERICAN JOURNAL 
. 3 | OF 
| | SCIENCE AND ARTS. 
Be | CONDUCTED BY 
t EB | _ PROFESSORS B. SILLIMAN, B. SILLIMAN, Jz, 
& 5 “ iE : ae : 
a | JAMES D. DANA, 
P a | IN CONNECTION WITH 
| Bil —s PROF. ASA GRAY, or CAMBRIDGE, 
“a | PROF. LOUIS AGASSIZ, or CAMBRIDGE, 
| : DR. WOLCOTT GIBBS, or NEW YORK. 
SECOND SERIES. 
No. 56,—MARCH, 18565. = 
~NEW HAVEN: EDITORS. 
bas ale YORK: G. PL PUTNAM & CO. 
ae by B. s Hawcas—Priner to Yale College. 
iS cache Romie wi 
