Jul B: ae 
THE : 
“AMERICAN JOURNAL 
SCLIHNCH AND ARTS 
EDITORS, 
JAMES D. ann E. S. DANA, ann B, SILLIMAN. 
ASSOCIATE EDITORS 
Prorressors ASA GRAY, WOLCOTT GIBBS anp 
J. P. COOKE, Jz., or CamprinGe, 
Prorsssors H. A. NEWTON, 8. W. JOHNSON, G. J. BRUSH 
anp A. KE. VERRILL, or New Haven, 
Proressor GEORGE F. BARKER, or PartiapELPHtIa 
THIRD SERIES. 
VOL. XVIT.—[WHOLE NUMBER, CXVIII.1 
Nos. 103—108. 
JULY TO DECEMBER, 1879 
WITH THREE PLATES. 
NEW HAVEN: J. D. & E. S. DANA 
1879: 
Misa0uUR! castes aoe 
ARDEN LiBR 
