$4.00 per Year. 
$4.60 per Year (Foreign). 
35 cts. per Copy. 
THE 
AMERICAN ; 
NATURALIST 
A MONTHLY 
JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
ANAGING EDIT 
M 
Prors. E. D. COPE; Philadelphia, AND J. S. 
ip natant ate ese te 
eset Linco 
C. O: WHITMAN, Chic cago, 
Pror. C. M. WEE z Durham ROF. W. 
PRO 
=a, 8. a Be 
NW: B: owes: "Matson, Wis 
pit tit Tufts College, College Hill, Mass. 
H a MERCER, Philadelphia. a 
EY; an pii Mai ANDREWS, Baltimore, 
TEA 
he WM. ROM AIRE NE Aasi ag Philadelphia. 
Vol. XXIX. 
MARCH, 1895. 
CONTENTIS 
PAGE. 
IN THE REGION OF THE NEW FossIL, DÆMONELIX. 
ae ) Frederick C. Kenyon. 
THE COLD SPRING HARBOR BIOLOGICAL LABORA- 
pntactrated: ae H. W. Conn. 
MINOR TIME DIVISIONS OF THE ICE AGE 
Warren Upham. 
THE SKUNK AS A SOURCE OF RABIES.. W. Wade. 
- THE CLASSIFICATION OF THE LEPIDOPTERA, (Illus- 
trated.) ernon DL. Ke ellogg. 
RECENT Creak irons The Glacial Nightmare 
and The Flood—Life Histories of North 
- American Birds—Geology of the Coastal 
Plain of Alabama—Thirteenth Annual 
Report of the U. 8. Geological Survey for 
1891-92. Part II—Reports of the Geologi- 
cal Survey of Arkansas for 1891 and 1892. 258 
RECENT Books AND PAMPHLETS. . . in a ZER 
GENERAL NOTES. 
235 
242 
248 
Geography and Troni AAi Vileahoue. 264- 
Mineral ; 
; —New Instruments. Goniometer 
with two Üiutnstöd: Circles—Universal Gonio- 
meter—Miers’s Inverted Goniometer — New 
- Goniometer Lamp— Darkening Attachment — 
for the Goniometer — Lecture Mier croscope— 
Ooni age se R AF 
| malia. : 
| in a Mammal — Development of Scyphome-— 
‘| Archeology and Ethnology—The Contention of 
4 MEd. D.. McGuire—The Results of Cave Ez- 
ploration in Germany. or - 
P. 
Czapski’s Ocular—Klein’s Lens with Micro- 
meter... 
Geology Sa Paleontology. Relations of Hes 
vonian and Carboniferou haracters 
of aa eri Geel ger of the 
West Indies—Fossil Mammals of the Lower | 
Mioeene White River Beds—Geological News. 270 
Botany.—Some Botanical Collections—Some_ 
Recent Botanical Papers. . . 
Zoology—The. Central Nexvoue System em at 
EE TER D Produced pee 
iim Maternal Characters?—Double Mon- 
sters—Fusion of Blastomeres — Temperature — 
and Development—A Problematical Structure 
dusæ—Blastomeres of Me a 
in Rarified Air. . . . 2 
Psychology—The eni tat of Peyeh ou: 
PHILADELPHIA, U. S. A. 
THE EDWARDS & DOCKER C co., : 
