SCIENCE 



Editoeial Committee : S. Newcomb, Mathematics ; E. S. "Woodwaed, Mechanics ; E. C. Pickeeing, As- 

 tronomy ; T. C. Mendenhall, Physics ; E. H. Thueston, Engineering ; Ira Eemsen", Chemistry ; 

 J. Le Conte, Geology; W. M. Davis, Physiography; O. C. Maesh, Paleontology; W. K. Beooks, 

 Invertebrate Zoology ; C. Haet Meeeiam, Vertebrate Zoology ; S. H. Scuddee, Entomology ; 

 N. L. Beitton, Botany ; Heney F. Osboen, General Biology ; H. P. Bowditch, 

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

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



Friday, November 15, 1895. 



CONTENTS: 



The NaUonal Academy of Sciences 637 



The Thermophone : Geoege Chandler Whipple..639 



TJie Foundations of Medical Science: Lionel S. 

 Bealb 644 



The Major Premise in Physical Chemistry : Eobt. 

 B. Waedek 651 



Eemarlcs on Some Recent Fungi Exsiccati : Joseph 

 F. James 654 



The Bibliographica Zoologica and Anatomica 656 



Current Notes on Physiography {XVIII.): — 

 Mackinder on English Geography ; Mountains and 

 Lowlands of Greece: "W. M. Davis 657 



Scientific Notes and News : — 



Harvard College Observatory ; Tlie Department of 

 Insects of the U. S. National Museum; The Third 

 International Psychological Congress; Genei-al 658 



University and Educational News 664 



Discussion and Correspondence: — 



The International Code of Nomenclature: Ch. 

 Waedell Stiles. Katydid Orchestration: 

 Elliott Coues, Abthue P. Bostwice. The 

 Science of Mentation : Wesley Mills. Inverted 

 Image Once More : Joseph Le Conte, J. McKeen 

 Cattell 665 



Scientific Literature : — 



Tenth Report of the Northwestern Tribes of Canada : 

 Alex. F. Chambeelain. Solution and Electrol- 

 ysis: Thomas Geay. Critical Periods in the 

 History of the Earth : Aethue Hollick. Eceles' 

 Practice of Massage : Guy Hinsdale 668 



New Books 672 



MSS. intended for publication and boolcs, etc., intended 

 tor review sliould be sent to tlie responsible editor, Prof. J. 

 McKeen Cattell, Garrison on Hudson, N. Y. 



Subscriptions and advertisements stiould be sent to Science, 

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



TSE NATIONAL ACADEMY OF SCIENCES. 



A SCIENTIFIC session of the Academy was 

 held at Philadelphia, iu the Laboratory of 

 Hygiene of the University of Pennsylvania, 

 beginning Tuesday, October 29th, 1895, at 

 11 o'clock A. M. and continuing through 

 the following day. 



A special stated session was held on 

 Wednesdaj'-, October 30th, to consider the 

 President's Annual Eeport to Congress and 

 other business. 



The members of the Academy reported 

 in attendance were : Alexander Agassiz, 

 Carl Barus, John S. Billings, Henry P. 

 Bowditch, William H. Brewer, W. K. 

 Brooks, George J. Brush, Edward D. Cope, 

 Samuel F. Emmons, Wolcott Gibbs, Theo- 

 dore N. Gill, Benjamin A. Gould, Arnold 

 Hague, Asaph Hall, Charles S. Hastings, 

 0. C. Marsh, Albert A. Michelson, S. Weir 

 Mitchell, Edward S. Morse, John W. 

 Powell, Raphael Pumpelly, Frederick W. 

 Putnam, W. H. Welch, A. E. Verrill, 

 Francis A. Walker, Horatio C. Wood and 

 Charles A. Young. 



The papers presented were as follows : 



OCTOBER 29TH. 



I. On the Paleozoic Reptilian Order of the 

 Cotylosauria : E. D. Cope. Prof. Cope said 

 that the order Cotylosauria is of much in- 

 terest from the fact that it is one of the 

 two orders of paleozoic age, because it ap- 

 proaches nearest to the Batrachian class, 

 and because it is the ancestral type of all 

 the Amniota Vertebrata. The order was 

 determined by the speaker in 1870, and is 

 now known to include forms from North 

 America, South Africa and Scotland, in the 

 latter country in Triassic beds. Four 

 families and ten eenera are known, and 



