THE 
AMERICAN JOURNAL 
OF 
SCIENCE AND ARTS. 
EDITORS AND PROPRIETORS, 
JAMES D. DANA, B. SILLIMAN, ann E. S. DANA. 
. ASSOCIATE EDITORS, 
Prorrssors ASA GRAY anv WOLCOTT GIBBS, 
OF CAMBRIDGE, 
Prorrssors H. A. NEWTON, 8S. W. JOHNSON, 
GEO. J. BRUSH anv A. E. VERRILL, 
OF NEW HAVEN, 
Prorrssor EDWARD C. PICKERING, or Boston. 
THIRD SERIES, 
VOL. IX._[WHOLE NUMBER, CIX.] 
Nos. 49—54. 
JANUARY TO JUNE, 1875. 
WITH SEVEN PLATES. 
NEW HAVEN: EDITORS. 
1875. 
MissouR! BOTANICAL 
GARDEN LIBRARY 
