AMERICAN 
JOURNAL OF SCIENCE. 
JAMES D. ann E. S. DANA, anp B. SILLIMAN. 
; ASSOCIATE EDITORS 
Proressors ASA GRAY, JOSIAH P. COOKE, anp 
JOHN TROWBRIDGE, or Camsringe, 
Prorrssors H. A. NEWTON anp A. E. VERRILL, or 
: New Haven, 
Prorrssor GEORGE F. BARKER, or PuinapEetpata. 
THIRD SERIES, 
VOL. XXVIII.—{[WHOLE NUMBER, CXXVIII.] 
Nos. 163—168. 
JULY TO,DECEMBER, 1884. 
WITH FOUR PLATES, 
NEW HAVEN, CONN.: J. D. & E. 8. DANA. 
1884. 
MISSOURI BOTANICAL 
GARDEN LIBRARY 
e 
