
- foo per Year. 

TENETE 
THE 
AMERICAN 
ATURALIST. 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 




Vol. XXV. NOVEMBER, 1891. No. 299. 


CONTENTS. 



PAGE. PAGE. 
LANGUAGE AND MAX MÜLLER, Mineralogy and Petrography. — Petrographical Sa 
l S. V. Clevenger, M.D., 951 | News—Mineralogical New “ies e E SE I 
THE PERMIAN, TRIASSIC, AND JURASSIC ie Botany.—The Flora of ‘Chi icago—The Action of 
MATIONS IN THE EAST-INDIAN ARCHIPELAGO Bacteria on the Rapid Souring of Mi uring 
( AND ROTTI ugust Rothpletz, 959 under Storms—The Parry Herbarium—Palmer’s 
THE HAT CREEK BAD LANDS [Ilustrated], Mexican and Arizona Plants o a TS Months 
J. S. Kingsley, 963 of Elementary Botany, . . A E 
TITY AND DYNAMICS OF ANIMAL Zoology.—The e Anatomy of Phagocata ta—Crustacea 
z niie a = eg . J. Lawton Williams, 972 and Echinoderms eo Japan—The Affinities of the 
Molluses—The Head of says magne Bes a o. 
oo 
$ 
RECORD OF ' AMERICAN ZOOLOGY, J- S. Kingsley, 9 production of the Conger—A New w Species « of "Frog 
EpITORIAL.— Tariff se he s on a Works— from New Ba pann ical Notes : bance 
Lon Powell's Geological Maps—Recent Pro- 
_ gress in the Discovery of the Piviogeny of Man, 

Embryology. ibryolo ogy © of oe The 
99° Development of Hydra—M orpholo; pot the. Verte- 




RECENT ee AND PAMPHLETS, . 2 i 29. 6% 993 brate Head—Tri iple Fertilization in £f Domes- es is 
RECENT LITERATURE.—Doelter’s Allgemeine Che- tic Fow! tilius strated], 1020 
mische Mineralogie—Fewkes's Coelenterata asi Archeolo, ogy and Ethno rete pn E Taternaiiouat 
p Echinoderms, «o o iae ue ruo oe 995 ew ae of Anthropology and Prehistorie Arche- 
z GENERAL NOTES. ology of Paris, 1889 [Continued]—The Prehistoric 
Er Man of Spy—Continuation and Close of Proceed- 
Se eee ok of White Ant be ings of the ENTE Association for the Advance- B 
~—More New Mammalia from the Eocene of ment of Science, s s 1 ++: See 
Si e 907 unin ke o a 1039 


PHILADELPHIA: 
FERRIS BROS PUBLISHERS 
COR. SEVENTH AND FILBERT STS. 


Philadelphia Post-Office as second-class matter. 

