THE aoe i : 
AMERICAN.” 
OURNAL OF SCIENCE, 
EDITORS 
MES D. ann E. S. DANA, Aanp B. SILLIMAN. 
ASSOCIATE EDITORS ° 
Prorrssors ASA GRAY, JOSIAH P. COOKE, anp 
JOHN TROWBRIDGE, or CamprinGE, 
*roFEssors H. A. NEWTON anp A. E. VERRILL, .or 
New Haven, 
Prorrssor GEORGE F. BARKER, or Purapecputa. 
THIRD SERIES, 
VOL. XXIU.—[WHOLE NUMBER, CXXIII.] 
Nos. 133—138. 
JANUARY TO JUNE, 1882. 
WITH FOUR PLATES. 
NEW HAVEN, CONN.: J. D. & E. S. DANA. 
1882. 
MI890UR) BOTANICAL 
GARDEN LIBRARY 
