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THE 
AMERICAN 
NATURALIST 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
MANAGING EDIT 
Prors. E. D. COPE, Philadelphia, AxĐ J. S. KI ORA Tufts College, College Hill, Mass. 
ASSOCIATE EDITORS: 
Dr, -C-O WHITMAN, Chicago CSB sige Lince in, Neb., E G MERCER, Katana igs, 
Pror. C. M. patos Durham, Ni H., ProF. W. S. BAY -W atarvilfe, Maine EWS, Baltimore, 
. W.H. HOBBS, Madison, Wis M. ROMAINE NEWBOLD, Hiatt 
Vol. XXIX. JUNE, 1895. No. 342 
CONTENTS. 
PAGE, PAGE. 
Is DAEMONELIx A Burrow? (Illustrated.) Petrography.—The Eruptive Rocks of . the 
Erwin Hinckley Barbour: 517 | Christiana Region—The Massive Rocks of Arran 
ON eee’ PROTANDRIC AND PROTEROGYNIC —Migration of Crystals from a Younger to an 
HERMAPHRODITISM IN ANIMA Older Rock—News - 567 
nas H. E E Jr. 528 Geology. and Paleontology -Niagara an am the 
SPONGES: RECENT AND past ees ) . | Great aleozoic Insects — Fhe Phylogeny 
seph F. James. 536 |-of the Whalebone w araea Two New Species of 
THE MOUTH-PARTS OF THE rare, (Hlus- Dinictis from the White River Beds, (Illustrated) 
trated. Vernon L. Kellogg. 546 | Geological News. . 570 
RECENT Liter atone Cambridge Natural Botany. thant of the Pikica Sirtiy of é 
History—Marshall’s Biological Lectures and -Nebraska—Pharmaceutical Botany. . 580 
Addresses—Butterfly Hunters in the Carib- Vegetable Phipiologit —What becomes of the 
bees—L’ Amateur de des Papillons— Mono- Flagella ?—Perithecial Stage of the Apple-Scab 
graphic Revision of the Pocket Gophers— Fungus—Poisonous Cactaceae—Rothert on Helio- 
A Monograph of the Bats of North America, 557 | tropism — Austro-German Views on Botanical 
RECENT BOOKS AND PAMPHLETS. . . . . 560 | Nomenclature—Separation of Enzymes. . 583 
GENERAL Notes. Kage k ~ ens S cape? -Life History s 
Mient y.—Origin of the “ PEENE ECN he- Lobster— as in the Swim- ro 
af Mailis —Biowpips he “Pa Deep-Sea Fist A New Locality for Abastor 
erythrogrammus—The C Cold- bata. Warehouse © 
of Phosphorus in Studying Minerals of High Cat-—A New Harvest Mouse 1 Flori = 587 
Refractive Index—Chaleocite from-Monte Catini ` Embryology. ate Amphibis—The Embryo 
—Diopside and Apatite from Zoptau—Serpierite of the Duckbi - 590 
—Lautite—Study of Optical Anomalies by Artifi- Astron -- s he. Antiquity o of von in North . 
cially EPE TE Method of Illuminating in Am —Paleolithic Man . 593. 
Photo omicro idee RE pepe ical Behavior — mni OF SCIENTIFIC SOCIETIES. 600 
of > Dimorphous Minerals—Pearl s poe | SCIENTIFIC NEWS. oo poo as ae BOE 
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