A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
MARCH, 1891. 
CONTENTS. 
PAGE | 
D enoa me S | aa emm 
SS nace b, W patel ieee of Gemmiform Pedic of 
Omer OF THE GALAPAGOS Bron : ise Shein 
LOGI ri Woni OF AMERICAN EXPE 
STAT . Clarence M. Wied: 230 
ON OF THE Cincutatony ORGANS k 
a C. Cahall, 237 
Physiology, —Vasomotor Ner of the Portal Veš 
eee 
LATURE.—Sir Samuel 
ane Wars itesuntedSteicloey abo | 
Travels: Bee a — cack 
ed Palemia A Cu z sak 
E a 
> of the Great Lakes— 
eological News : General 
275 
