DEVOTED TO THE 
WHITMAN, Chicago, Dr. C. E. BESSE 
WEED, Durham, N. H. 
THE 
AMERIC 
ATURALIST 
A MONTHLY JOURNAL 
AN 
NATURAL SCIENCES 
IN THEIR WIDEST SENSE, 
MANAGING ED 
Prors, E. D. COPE, rina es KINGSLEY, Boston. 
ASSOCIATE vahy or 
Y, » Neb., 
> Pror. W. S. BAYLEY, weston Maine, 
Pror. W. H. HOBBS, Madison, Wis. 
Lin H. C. MERCER, Philedeiphia. 
Pror. E, A. ANDREWS, Baltimore, 
EN 
VIL 
MAY, 1894. 
No. 329 
SCHULZE’S SYSTEM OF DESCRIPTIV 
% a Hyatt. 369 
OF Monn Pog 
Frederic 5. Lee. 380 
HOLOGY oF NEw. Gur 
oe 
“A Species OF SIMOCEPHALUs. 
trated EF 
ity ete: s—Madagascariensis— 
in a National Parks — The 
Civil B: 
, 399 | 
AND Pea’ 4 x TA T 
Sida son the Cigsaities tien: of 
f idia—Stiles’ and Hassal’s Ces- 
k's Dora cai Methods — 
iology. 4 
=the Geol 
© 
Eh 
3 Cretaceous Trituberculates 
the e Tapir— Geological News— 
Ìe— Cenozoic. pe SEL i 
and P techie amie! Eruptive 
T 
orge S. Mead. 389 | 
ra 
CONTENTS: 
PAGE. 
Rocks of Cape Bonita, Cal—Lamprophyres 
near the Shap Granite Mass—The Geology of 
Conanicut Island, R. I—Petographbical News 
—Alurgite and Violan from St. Marcel—Zonal 
Plagioclase — Hereynite in Gabbro — Optical 
Constants of cee eee: News— 
| Miscellaneous : 
Bota what is Avord L The So- 
ca Ted « ‘<Russian Thistle.” (Illustrated). - 426 
Zoology—Reproduction of the Foraminifera 
| —Regeneration in Hydroids—The Parietal 
| Eyes—East African Reptiles and Batrachia— 
On the Iguanian genus Uma Baird. (Illus- 
trated )—On the Genera and Species of Euchi- 
rotid# — (Illustrated) — Zoological News. — 
Protozoa—Mollusea—Vertebrata. . . 5 
Embryology—Development of Sponges. 
Entomology — Shade Tree, Insects — (Ilus- 
| trated)—Larval Habits of Brachinus—North 
American Teypétidee—North American Doli- 
 chopodidee—Entomological Notes 
|. Archeology and Ethnology—The No on mere nee 
| of Paleolithic Culture — Professor W. Boyd 
| Dawkins on Paleolithic Man in Europe. 
| PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
SCIENTIFIC NEW. > ¿i 
| 
i 
| 
. 442 
ME 
. 452 
460 
PHILADELPHIA, U. S. A. 
EDWARDS & DOCKER CO., 
518 ano oec MINOR PERRET: 
