VOL. XXXIII, No. 390” 
CONTENTS 
PAGE 
I. The Efficiency of Some derph Adaptations in goi a 
from Birds e SYLVESTER D. JUDD 461 
II. Note on the Vertical Distribution of Mallom 
0. WHIPPLE "and HORATIO N, PARKER 485 
III. The Colors of Northern onsectylodanons Flowers JOHN ona LOVELL 493 
IV. Loss seden ena ow haga of ae —— in the oer of a Projecti 
ee L. L. TOWER 505 
Editorial Co mment : Keys for “the Determination o of American Inverte- 511 
brates, Outdoor Nature Study, Vertebrate Ancestry, New “ American 
Anthropologist ’ 
VI. Reviews of Recent Literature: Anthropology, Explorations in the Far 514 
North, West African Studies, Mythology of the Bella Coola Indians, 
Anthropological Notes — General Biology, Effect hemical and Phys- 519 
ical Agents upon Growth, Variation Statistics, Inheritance of Acquir 
ualities — Zod/ogy, Evans’s Birds, Blind-Fishes of the Caves, Trout 523 
of the Olympic Mountains, Fishes of the Revillagigedos, The Miller’s 
Thumb of Europe, Fishes of Santa Catalina Island, H thological 
Studies of Kowalewski, Blood Spots in Hens’ Eggs, Origin of the 
Fauna of the Central African Lakes, Swiss Rotifers, Trematode Anatomy, 
s Luteum in the Pig and Man, The A achyw 
ical Notes — Botany, Campbell’s Evolution of ts, A Recent 587 
Work on Bryophytes, Aldehyde in Leaves, Light and the Respiration 
Fungi, Spore Development in the Hem “on ee ew Work on Lichens, 
Agardh’s Alge crea d Algæ, Botani — Geo i of 548 
North America — Pe WNP ee The Volcanics of E San Clemente, Contact 550 
Phenomena in Mi Granitic Rocks of the Sierra The 
Rocks of Mount Rainier, Luquer’s Minerals in Rock Sections, The Fuess 
Catalogue, Petrographical N 
VII. News 556 
VIII. : On the Use = the Terms “ cece a “Variability,” ; 
essor eraka A. WAU 559 
IX. Publications Received 561 
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THE 
AMERICAN 
NATURALIST 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE 
_ Entered at the Post-Office, Boston, 
JUNE, 1899 
