MERICA 
ATURALIST. 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
APRIL, 1891. 
CONTENTS. 
PAGE 
En eo OF THE — INDIANS | Mineralogy and Petrography. — Petrographical 
ed], . | R. W. Shufeldt, 303 | News—Mineralogical News—New Minerals,. - 
Onicin OF THE GALAPAGOS ISLANDS toplasmic Physics—Alcoholie ictal 
| . Botany.—Pro 
Me ie a ee C Ba y t Tor Faborito Work in = č Botany—A iew 
+ n S- ZOUT, 307 |. Manual of Botany, 
- OF T THE PROG ` 
BRATE PALEONTOLOGY e ear FE ae en ot secu eae cack: 
; of Corals— _— of the Salamander Diemye- 
a he a": . 
. Charles R. Taa | tylus viridescen 
Embryology. ihe Portal Membranes d Testu- 
Soon ‘Placenta or abe Rs e 
ogy o rng pomp: sic — f the e Echino ; 
igh a Ak Phy yaoi —Note on teat nstinct uae 
n —An Instance of the Black Snake EDUT 
T Hyatt and Arms on Insecta, Archeology and LEthnol one Eia 
gress of Archeology a 
Munich Association—The Mare of 
Microscopy.—The Pyenogonids—Method of R n- 
Pent O ei Nem - 
thod ses io  Hydroids, Actinize, ete. 
SEA OF SCIENTIFIC SOCET. i 
SCIENTIFIC NEWS, - eee 
‘al — Paleozo 
PHILADELPHIA: 
RRIS BROS., PUBLISHERS 
