NATURAL | 
»« SCIENCE | 
A MONTHLY REVIEW OF SCIENTIFIC PROGRESS 
NOVEMBER 1808 
12,941 ce 
All Rights Reserved No. 81 
Contents 
A Classification of the Vertebrata : _ Hans Gadow—The raeehicte and Habits of otteaay 
Wasps: by G. W. and Eliz. G. Peeckham—The Temperance Question from a Biological 
Standpoint : by G. Archdall Reid—Radiation : by H. H. F. Hyndman—tThe Library of 
the Dresden Museum—Bibliography of Russian Geology—Bibliography of Scientific 
Serials—Scraps from Serials, &c. 
. Obituaries 
Sir George Grey Gabrist de Mortillet__James a Bitdy, &c. 
_ News 
Correspondence ¢ 
The Evolution of Horns: by &. Archdall Reid Vaccination : aes U. 
PAGE 
Notes and Comments : : : * : 3 ! ; .. 289 
Found, an Editor—Oceans and Continents—/7oxodon (Illustrated)—Fossil Ostrich in China 
—Notes of Birds—Life Conditions of Oyster—Method of Feeding of Helix hortensis— 
Abnormal Skells of P/anorbis—Remarkable Marine Organism—" Bugs” as Food— 
The Relationships of Butterflies—An Entomological Controversy—Origin of Diato- 
maceous Earths in New Jersey—Persistence of Specific Forms—Tidal Crannog at 
Dumbarton—Australian Initiation Ceremonies—Natural Gas in Sussex—Mount Rain- . 
‘pow Goldfield—Virchow’s Lecture. 
The probable depths of the Gault Sea as indicated by its Rhizopodal Fauna. By Frederick 
Chapman, A.L.S., F.R.M.S. : : : ‘ 305 
The Gular Pouch of the Great Bustard (Otis tarda). (Illustrated.) By W. Pycraft, F.Z.S. 313 
An Existing Ground Sloth in Patagonia. A translation of Dr Florentino Ameghino’s Pamphlet 324 
\ 
The Imperfection of the Geological Record. By A. Smith Woodward, F.L.S., F.Z.S. 327 
Artificial Formation of a Rudimentary Nervous System. (PartI.) (Illustrated.) By Professor 
A. L. Herrera é : “3 2 A a c . 2 333 
Some New Books r - 340 
351 
353 
359 
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