} 
a 119 
AMERICAN J OURNAL 
SCIENCE AND ARTS. 
Proressors JAMES D. DANA anp B. 
ASSOCIATE EDITORS, 
Prorrssors ASA GRAY anp WOLCOTT GIBBS, 
OF CAMBRIDGE, 
Prorrssors H. A. NEWTON, S. W. JOHNSON, 
GEO. J. BRUSH anv A. E. VERRILL, 
OF NEW HAVEN, 
Prorrssor A. M. MAYER, or Hozoxen, N. J. 
SILLIMAN. 
THIRD SERIES. 
VOL. VL—[WHOLE NUMBER, CVI] 
Nos. 31—36. 
JULY TO DECEMBER, 1873. 
WITH THREE PLATES. 
NEW HAVEN: EDITORS. 
aire Sipiaitere rete 
PRINTED BY TUTTLE, MOREHOUSE & TAYLOR, 221 STATE ST. 
MissouR! BOTANICAL 
GARDEN LIBRARY 
