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THE 
AMERICAN 
NATURALIST 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
ANA oe EDITO 
Prors.'E. D. COPE, Philadelphia, AND J. caters Tufts College, College Hill, Mass. 
OCIATE EDITORS: 
Dr. C. O. WHITMAN, Chicago, Dr. C. E. BESSEY, Lincoln, Net H. C- MERCER, a sy 
Pror, C. M. WEED, Durham, N. H., Pror. W. S: BAYLEY , Water Maine, Pror. E, A, ANDREWS, Baltimere, 
PROF. A. C. GILL, Ithaca. Pror. H. C: WARREN, Princeton. ERWIN F. SMITH, Washington, D: C. 
Vol. XXX. > OCTOBER, 1896. No. 358 — 
CONTENTS: 
fame! a 
PAGE 
FRESH REL nee GLACIAL MAN spartan AT TRE Geology and Paleontolozy—Cambrian Rocks of 
BUFFALO MEETING OF THE ae ee Ss ts Gee Pennsylvania arinetan of Uintacrinus. f a + 
Ge eineden ech Wrigh lustrated )—Geogical News . 817. 
RELATIVE EFFICIENCY OF ANIMALS AS MACHIN 
Ma anty aha 784 Botany—Botany at TA New Manual 
_ THe BACTERIAL DISEASES OF PLANTS: A CRITICAL of Systematic Botany 
7 EVIEW OF THE PRESENT STATE OF OUR Zooloegy—The Heart of Some ius Sala- 
KNowLEDGE. (Coutinued. A manders. (Illustrated )—On two New Species 
rwin F, Smith. 796} of Lizards from Southern California—Modifi-- 
Epiror’s Tapte.—The American PWEN N n cation of the Brain during Growth—The Lion 
The Field Museum. —Notice»to our Con- of India—Inheritance of Artificial Mutilations, 
tributors, . : 0 SOD 
Entomology-~A New Character in the Colo- 
bognatha, with Drawings of Aane E 
tematic Note. (Illustrated) . : 
Psychology. — Congress of Pdo — 
Mental Action During Sleep, or Sub-Conscious — 
copter Mimetic Origin and Develop- 
ment of Bird-Language and “The pigens 
of a -Song ”—A Note on Dr. Herbert Zdra 
ol’s Paper (Amer. Nat., Sept., 1896)... . -3S8 
RECENT jokes AND peihae eine rss A O 
GENERAL NOTES 
Mineralogy bed Crystallegraphy—Development 
—Fayalite and the Chrysolite-Fayalite en 
_ BEAGE and Tetragophosphit 
Miscellaneous. N 
Petr ot ake Gates st Point Sal; Öalifornia 
—Leucite-Basanites of Vuleanello—A Squeezed AMéicroscopy—Methylen Blue. i: +... S 
Quartz-Porphry—Myca-Syenites at‘ Rothschen- PROCEEDINGS OF SCIENTIFIC SOCIETIES.” . 5 2 J 859 
A me Er ret CR ae pion. 814} Serine News. o o Sk Se ee 
PHILADELPHIA, U. S. A. 
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