THE 
AMERICAN 
NATURALIST 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE 
CONTENTS 
I. Relation of James Hall to AmericanGeology. . . . L. P. GRATACAP 
II. The Wings of Insects, IV. Continued.  . J. H. COMSTOCK and J. G. NEEDHAM 
III. Variation in the Shell of Helix Nemoralis in the Lexington, Va., 
Colony z JAS. LEWIS HOWE 
f the C Bhijographicum - HERBERT HAVILAND FIELD 
Work oI uie 
V. On | Protostega, the Systematic Position of Dermochelys, and the — 
Morphogeny of the - or HAY . 
VI. Editorials: The Editor-in-Chief, An Editor Found, Artificial Protoplesin ee 
VII. Reviews of Recent Literature: Anthropology, Human Remains from Maya — ee 
tory — General Biology, Variation in Seedlings, ‘Chemical Analysis f the 
Plankton — Zoology, Morphology of ‘Trematodes, Michigan Unionide 
Plankton of Puget Sound, Faune de France, Fishes New to New ‘England, 
nego tic Position of the Pycnogonids, Crustacea of the Northrop Collec: 
— Botany, A Monograph of the Genus Caulerpa, A New V lume of De 
Fan Sylloge, Studies on Phytoplankton, “ The Cryptogams of th River | 
Rockery and Ae Ta JETER EIE in ı Horticulture, Botanical 
: f Dana’s Mineral g, i Michi 
: Volania, California 2 Rocks, “Adirondack Gneisses, Notes . 
VoL ‘Scientific News: 
BOSTON, Us. e o 
GINN & COMPANY, PUBLISHERS 
