SCIENCE 



Editoeial Committee : S. Newcomb, Mathematics ; E. S. Woodward, Mechanics ; E. C. Pickering, As- 

 tronomy ; T. C. Mendenhall, Physios ; E. H. Thurston, Engineering ; Ira Eemsen, Chemistry ; 

 J. Le Conte, Geology; W. M. Davis, Physiography; O. C. Marsh, Paleontology; W. K. Brooks, 

 Invertebrate Zoology ; C. Hart Merriam, Vertebrate Zoology ; S. H. Scudder, Entomology ; 

 N. L. Bkitton, Botany ; Henry F. Osborn, General Biology ; H. P. Bowditoh, 

 Physiology ; J. S. Billings, Hygiene ; J. McKeen Cattell, Psychology ; 

 Daniel G. Brinton, J. W. Powell, Anthropology. 



Feidat, Octobee 4, 1895. 



CONTENTS: 



Address of the President, Sir Douglas Galton, before 

 the British Association for the Advancement of 

 Science 421 



Electrification and Diselectrifkation of Air and other 

 Gases : Lord Kelvin, Magnus Maclean and 

 Alexander Galt 433 



Science or Poetry : ■ W. K. Brooks 437 



Bibliography as a Feature of the Chemical Curricu- 

 lum: H. Careington Bolton 440 



Agricultural Chemistry: H. W. Wiley 442 



Proceedings of the Botanical Club, A. A. A. 8., 

 Springfield Electing, August 29th to September 2d, 

 1895: H. L. Bolley 445 



The Botanical Society of America: Charles E. 

 Barnes 448 



Scientific Notes and Netos: — 449 



A New Jurassic Plesiosaur from Wyoming : W. 

 C. Knight. The Earliest Name for SteUer's Sea 

 Cow and the Dugong : T. S. Palmee. An In- 

 ternational Zoologist' s Directory; Natural Science 

 Training for Engineers ; General. 



University and Educational Netos 453 



Correspondence: — 453 



Professor Halsted Replied To : Emory McClin- 



TOCK. 



Scientific Literatwre: — 454 



Climate and Baths of Great Britain : J. S. Bil- 

 lings. Bawitz's Leiifaden filr histiologische Unter- 

 suchungen : S. H. G. 



Scientific Journals : — 456 



Psyche. 

 New Books 456 



MSB. intended for publication and books, etc., intended 

 for review sliould be sent to the responsible editor, Prof. J. 

 McKeen Cattell, Garrison on Hudson, N. Y. 



Subscriptions and advertisements should be sent to Science, 

 41 N. Queen St., Lancaster, Pa., or 41 East 49tb St., New York. 



ADDRESS OF TEE PRESIDENT, SIR DOUGLAS 

 GALTON, BEFORE THE BRITISH ASSO- 

 CIATION FOR THE ADVANCE- 

 MENT OF SCIENCE. 



My first duty is to convey to you, Mr. 

 Mayor, and to the inhabitants of Ipswich, 

 the thanks of the Britisli Association for 

 your hospitable invitation to hold our sixtj'- 

 fifth meeting in your ancient town, and thus 

 to recall the agreeable memories of the 

 similar favor which your predecessors con- 

 ferred on the Association forty-four years 

 ago. 



In the next place I feel it my duty to say 

 a few words on the great loss which science 

 has recently sustained — the death of the 

 Eight Hon. Thomas Henry Huxley. It is 

 unnecessary for me to enlarge, in the presence 

 of so many to whom his personality was 

 known, upon his charm in social and do- 

 mestic life; but upon the debt which the 

 Association owes to him for the assistance 

 which he rendered in the promotion of 

 science I cannot well be silent. Huxley 

 was preeminently qualified to assist in 

 sweeping away the obstruction by dogmatic 

 authority, which in the early days of the 

 Association fettered progress in certain 

 branches of science. For, whilst he was an 

 eminent leader in biological research, his 

 rutellectual power, his original and intrepid 

 mind, his vigorous and masculine English, 

 made him a writer who explained the deep- 

 est subject with transparent clearness. And 



