Fe eS Te ee eee ee ee ee 
. 
AMERICAN JOURNAL 
SCIENCE AND ARTS. 
EDITORS AND PROPRIETORS, 
Proressorns JAMES D. DANA anv B. SILLIMAN. 
ASSOCIATE EDITORS, 
Prorressors ASA GRAY anp WOLCOTT GIBBS, 
OF CAMBRIDGE, 
Prorrssors H. A. NEWTON, S. W. JOHNSON, 
GEO. J. BRUSH anp A. E. VERRILL, 
OF NEW HAVEN, 
Prorrssor A, M. MAYER, or Hosoxen, N. J. 
THIRD SERIES. 
VOL. V.—[_WHOLE NUMBER, CV.) 
Nos. 25—30. 
JANUARY TO JUNE, 1873. 
WITH TWO MAPS AND FOUR PLATES. 
NEW HAVEN: EDITORS. 
1873. 
PHINTED BY TUTTE, MOREHOUSE & TAYLOR, 221 sTATE $7. 
SOUR! BOTANICAL 
GARDEN LIBRARY 
