Vol. XII. All Ri gh ts Reserved No. 75 



JUN 27 1898 



NATURAL 

 "'" SCIENCE 



/ 

 A MONTHLY REVIEW OF SCIENTIFIC PROGRESS 



MAY i8g8 



Contents 



Notes and Comments 



PAGE 



289 



" Science falsely So-called " — The History of Geology at Oxford — Lnidius — The Cause of 

 Sunstroke — The Effect of Aquatic Plants on Water Supplies — The North Sea Fisheries 

 — Plankton Crustacea of Lake Mendota — The " Sprungschicht " or Thermocline — The 

 MoUusca of Lake Tanganyika — Some new Bivalves — North American Copepods of the 

 genus Diaptomus — Some Remarkable Earwigs — Photography in Geology — " The 

 Photogram" on the U.S. Geological Survey — Rust on Cereals — The New Academy of 

 Sciences of Washington — The South Kensington Museum — The Newcastle Museum — 

 The Chadwick Museum, Bolton— Pigeon-holes for Zoologists 



Cell-Physiology. By Herbert Spencer ...... 



The Study of Variations. A Reply. By Rev. George Henslow, M.A., F.L.S., F.G.S. 



A New Method of Asexual Reproduction in Hymenopterous Insects. By Paul Marchal, Director 

 of the Station Entomologique de Paris ..... 



The Smallest of Stridulating Spiders. By G. H. Carpenter, B.Sc. (Illustrated) . 



Parasites and Mess-mates in Ant-hills. Abstracted from Charles Janet 



By A, Smith Woodward, 



The History of the Mammalia in Europe and North America. 

 F.G.S., F.Z.S. ...... 



By F. A. Bather, M.A., F.G.S. 



F.L.S. 



Wachsmuth and Springer's Classification of Crinoids 

 Some New Books ...... 



Darwin and after Darwin, Vol. III.: by G. J. Romanes — Untersuchungen ueber die Faima 

 der Gewaesser Boehmens : by A. Fritsch and V. Vavra — Catalogue of the Hadfield 

 Collection of Shells from the Loyalty Islands : by J. C. Melvill and R. Standon — What 

 is Life ? by F. Hovenden — The Argument of Adaptation : by G, Henslow — Founda- 

 tions of Scientific Agriculture : by S. Cooke — A New Astronomy : by D. Todd — Serials 



Obituaries 



J. R. S. Hunter-Selkirk- 

 News . . . . 



-F. Fiala — 6. C. Dennis — and others 



Correspondence ....... 



The British Museum Catalogue of Moths : A. Radcliffe Grote 



307 



313 



316 

 319 

 323 



328 

 337 

 346 



353 



354 

 359 



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