MERICAN 
TURALIS 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 


SEPTEMBER, 1891. 


CONTENTS. 
PAGE. 
EPLY TO PROFESSOR MA scot ad “NOTE ON 
MESOZOIC MAMMALIA” eae 
Ë Osborn, 
LocK AND PARSLEY, o-i sig W. Bailey, 
2 PROBLEM OF THE SOARING HET apres 
trated ted], . SLL 
HistoRY OF Tiaki VEGETABLES Fy 
ued], "E. L. Sta E, 
ORIAL. ch cting: of f the American Association 
for the 

y of Geologist Internationa 
of atest woe 
NT Lareratune. —Morris Aryan Race— 
Boulenger on Rhyn eE Testudinata, 
! Črocodilia— Frazer's Mineralogical Tablets 

logical a of 
and 
e 
yin ‘the Years 1887-1838— nee 
e Daon Beds of Oregon—Geo 

logical News: General ; Archean ; Paleozoic ; 
zoic ; ae BONG cae e 
Mineralogy and PinographyP 
News M talo gical Ne ier Ae ees 
Zoology. —Sipuncul: us gou uldii— Sipunculus 
—The Eye in Shae) Crayfishes—" The 
at 
the Fri ae Waka ian owe 
uta —Notes on the Development 
gystom 
Arc keko and Bhole: L The Jai 
Congress Of get pi a Prehistorie” 
ology of Pari 89 [Con ] 
Microscopy. clk of the Methyl 
Vasale’s Modificatio nes igert's M feoai 
SCIENTIFIC NEWS, 

| PHILADELPHIA: a 
ERRIS BROS., PUBLISHERS 

