




- Geography ae Travel, —Dr. 
2 ds, 
4.00 per Year. 
40 cts. 
INE 
AMERICAN 
NATURALIS 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 

per Copy. 



Vol. XXV. 
OCTOBER, 1891. 
No. 298. 


CONTENTS: 
P 
A SKETCH OF THE GEOLOGY OF SOUTH Soy 
Gustav Steinmann, 
NOTES ON THE HEARTS OF CER ee egress ar 
H. Hyde, 
VIVISECTION; o cesa Gos 8 Frederick Gaertner, 
iard T reai MONUMENTS ¢ 
Y [Tilustrated], . - Alpheus S. Packard, 
THE DOUBLE MONSTER ROSA- gen 
evue Scieutifoue. 
EDITORIAL.—Scientific Journals—The Demis 
he Entomelogia y mericana—Uniformity in 
Geological Nomenclature 5 
RECENT BooOKS AND PAMPHLETS, iets 
RECENT Lge URE.—Geological Survey of Ar- 
= xe seo Povlogical Geira phy—The An- 
a of our Animals—Morphology of the 
aan Brain 
GENERAL NOT 
— Trip to the 
Galapagos Islan Ee T sore yk 
AGE, 

P 
Geology and Paleontology. —The Desert Senpage 
Depos sits at Hen on, England, soon 
Botany.—Botany at the wanes Meetings, 
ology e in pinata opods—The Re- 
edn the dapa Laboratory o of the — ee 
University 
Entomology.—Entomology at Washington,. . . 
Archeology and Ethnology.—Proceedings of the 
Section of Anthropology (H) of 7 ioe are Asso- 
ciation for the Advancement of Sci 
diy gt ain 
PROCEEDINGS OF SCIENTIFIC SOCIETIES,. . . 
914 
929 



ara 
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