$4.00 per Year. $4.60 per Year (Foreign). 35 ots. per Copy. 
THE 
AMERICAN 
NATURALIS 
A MONTHLY JOURNAL 
DEVOTED-TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE, 
ANAGING EDIT 
PROFS. E. D. COPE, Philadelphia, AND J. S. KINGSE k Tuts College, College Hill, Mass. 
; ASSOCIATE EDITORS: | j 
pr. €. 0. WHITMAN, Chicago, DR: C. a BE ee eee: In, Neb., HC MERE ER, ATIA 
PROF, C. M. WE a Durham, N. H. PROF. S: BAYLEY, -W atervilie, Maine, PROF. E. A. ANDREWS, Baltimore, 
WH. HOBBS, Madison, wi: Te WM aia NEWROL D, Philadelphia. 
ERWIN F» SMITH; W aahinatie: D. 
Vol. XXIX. AUGUST, 1895. 
CONDENS. 
PAGE PAGE 
INVESTIGATIONS. CONCERNING: THE ETIOLOGY OF 
Vegetable Phystology—Woronin on Selerotinia 
SARE Pe AR TJ Oo ne cane —Demonstration of Photosyntax by Bacteria 
THE AFFINITIES OF THE LEPIDOPTEROUS. WING. —Detection of Glukase by = Anna s 
(Illustrated.) Vernon: L< Kellogg. 709 } Methods. ~~. >: i SG ee D. 
ON THE PRESENCE Oc FLUORINE AS A TEST FOR 
THE FOSSILIZATION OF ANIMAL BONES. .{Con- 
Zootogý—The Chara acters of the Enchytreid 
Genus Distichopus—New Mollusca from the 
tinued. ) . Thomas Wilson, 719 | Pacific—Taylor om Box Tortoises—The Genera 
CONTRIBUTIONS TO CocciporoGcy.—I. of -Xantusiidze—Occurrence of the Siberian 
T. D.A. Cockerell- 725 | Lemning- Vole ({Lagurus) in the United States 
RECENT Books AND PAMPHLETS, . 732 | —The Introitus Vagine of Certain Muridee— 
GENERAL NOTES Zoological News. . 153 
Minerilogy—New Edition of Groth’s Physi- Entomology —A new Tettix ostente On 
cal Crystallography—Tables of the Thirty-two the Early Stages of some Carabidz and Chry- 
Classes of Crystal Forms... 734 | somelidee -- Cecidomyia atriplicis — Mexican 
: Peirography—An Example of Rock Different- Jumping Beans (Illustrated)... ko AT a 
tation- The Serpentines of thè Central Alpe—- Embryolegy—Half Embryos yersus Whole 
Dynamic Metamorphisin— Miscellaneous 737 Embryos—The Mouse's. Eg 69: 
i > gpi 
` Geology and Paleontology —Dawson on the Os- RG 
cillations of the: Beliring Ser Begiori—Gréen Psychology—The Problem of Instinct. 17S 
Pond Conglomerate—Notes on the Osteology Anthropology—Notes taken uponan Explora- 
of Zeuglodon cetoides. . 741 | tion of the Lehigh and Susquehanna Valleys 
Botany—Decades of North Egon. Chens for the ingot of Pennsylvania, in the ; 
—North American species of- Polygonum— Summer of 1 Ti 
Noton = e ra ee ey ot ee News. 4 17 
SCIENTIFIC 
PHILADELPHIA, U. S. A. 
“THE EDWARDS & DOCKER CO., . 
518 ano 520 MINOR STREET. 
