ors ae ei ANS am as, 
V No. 167, Vor. XXVIIL NOVEMBER, 1884, 
JOURNAL OF SCIENCE. 
| No. 167—NOVEMBER, 1884. 
| 
j 
_ Established by BENJAMIN SILLIMAN in 1818. 
| Sol THE 
AMERICAN 
EDITORS 
JAMES D. ann E. S. DANA, anv B. SILLIMAN. 
ASSOCIATE EDITORS 
Proressors ASA GRAY, JOSIAH P. COOKE, anv 
JOHN TROWBRIDGE, or Campringe, Si 
Prorgessors H. A. NEWTON anp A. E. VERRILL, oF 
New Haven, 
Proressor GEORGE F. BARKER, or Pun.apeteata. 
THIRD SERIES, 
VOL. XXVIII, —[WHOLE NUMBER, OXXVIL] 
ee 
‘NEW HAVEN, CONN : x D. 1 
(1884. 
TUTTLE, MOREHOUSE & TAYLOR, F 
