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NATURAL 
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12,91 é 
vA MONTHLY REVIEW OF SCIENTIFIC PROGRESS» cn 
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S S70 ae 
B SEPTEMBER 1897 doa 
Bees Contents 
a PAGE 
YN ‘otes and Comments 1 ‘ ‘ ‘ . m . .. ote 
yf ae Polar Exploration—Arctic Qeaieny. pies and their Stomachs—American Economic ag 
$ Entomology—Glands in Insects—The Photography of Microscopic Organisms in DS" 
as Motion—The Great Auk in Ireland—Extinct Birds of Madagascar—The Origin of the a 
aes Edentate Mammals—The South American Edentate Mammals—The Old World i = 
ON Edentate Mammals—New Light on the Ova of Vertebrata—Primitive Methods of pa 
Trepanning—Spear-throwers from New Guinea—Cycads—The Fossils of the English ia 
Chalk Rock—Tierra del Fuego ag) 
iy 
Peoonatrtp By Professor Chr. F, Lutken, University of Copenhagen. (With Plate VII.) . ee ‘i 
i 
Does Natural Selection Play any Part in the Origin of Species among Plants? By the Rev. e 
a George Henslow, M.A., F.L,S. : : p ; ; i . - 166 a 
Reproductive Divergence ; An Additional Factor in Evolution. By H. M. Vernon, M.A. . Mae Me 
On the Restoration of some Extinct Reptiles. By W. G. Ridewood, D.Se., F.L.S. (Illustrated) . 190 i ¥ 
- .) 
‘The Facetted Pebbles of India By R. D. Oldham, F.G.S 197 
4 ‘some New Books , : i : " : ’ ; . 200 a 
i Traité de Zoologie ‘Conenate - by Y. Delage and E. Hérouard—Catalogue of Fossil } ae 
y Cephalopoda in the British Museum, Vol. III.: by A. H. Foord and G. C. Crick— = 
ag The Concise Natural History: edited by A. H. Miles—A Handbook to the Order Fi 
Lepidoptera: by W. F. Kirby—Manuel de Géographie Botanique: by Oscar Drude— 7 
New Serials an 
‘Obituaries , » 209 
. J.C. sieenin s. iaine—2: L. Sclater—N. Elias—T. Chudzinski—t, plart abd others 
; News of Universities, Museums and Societies : : ‘ : : : - 212 
“Correspondence q : f : : f : f J. “316 te 
Na Ss. 8: Sanna G, Ww. ord 
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