Dr. C. O. WHITMAN, 
AMERICAN 
NATURALIS 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
a IN THEIR WIDEST SENSE. 
E MANAGING EDITORS: 
T Prors. E. D. COPE anp J. S. KINGSLEY. 
ASSOCIATE EDITORS: 
Dr. C. E. BESSEY, 
_ Pror, C. M. WEED, , Pror. W. S. BAYLEY, 
THOMAS WILSON, 
Pror. E. A. ANDREWS. 
XXVI. 
OCTOBER, 1892. 
CONTENTS. 
a PAGE. 
E PROBLEM OF MARINE BIOLOGY 
es Laren 799 
‘ANCE OF THE -e OF shed Ta abt 
ANTHROPOLOGY (Contin 
Thomas Wilson. 809 
oo PHYSIOLOGY OF RESPIRATION 
Simon 
Ls.—Meeting of pa American Associ 
Epi f Science— ie Ameri- entons 
Tage gore) Table ~ _Neples—Vertebata 
ee the . 
Minewalogicx cal News— rae 
- Loology.—Fortuitous Variati 
peat Hæmal Region 
Apteryx: Anatom 
= ‘birds sects Swifts—Zoological mates 
ocks— = Optical "Anomalies — 
the paces are 
enera 
i tnt | 
Echinorhynchus — 
of Echinoders-— Wild 
and Snakes in Se oe Phylog 
ryx—Ridgway on y of Hum 
