SCIENCE 



A WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE 



Pkidat, Febbuaey 1, 1907. 

 contents 



The American Association for the Advance- 

 ment of Science: — 

 The Contributions of America to Geology: 

 Professoe William North Kice 161 



Scientific Books: — 



Shearman on the Development of Symbolic 

 Logic: Professor John Gkier Hibben. 

 Baldimn's Thought and Things: Professor 

 G. A. Tawney. The Waj/s of Sheep: Pro- 

 fessor Vernon L. Kellogg 175 



Societies and Academies: — 



The Geological Society of Washington: Dr. 

 Fred E. Wright. The Philosophical So- 

 ciety of Washington: Charles K. Wead. 

 The New York Academy of Sciences, Sec- 

 tion of Geology and Mineralogy : Professor 

 A. W. Grabau. Neiv York Section of the 

 American Chemical Society: C. M. Joyce. . 181 



Discussion and Correspondence: — 



Facts and Interpretations in the Mutation 

 Theory: Dr. A. E. Ortmann, Specific 

 Name of Necturus Maculosus: Dr. Leon- 

 hard Stejkeger. The Definition of Solid 

 and Fluid: Dr. Alfred C. Lane. A Cor- 

 rection : Dr. C. H. Gordon 185 



Special Articles : — 



The Case of Anasa Tristis: Professor Ed- 

 mund B. Wilson 191 



Notes on Organic Chemistry: — 



Diazonium Perchlorates ; Preparation and 

 Properties of Benzoyl Nitrate: Dr. J. 

 Bishop Tingle 193 



Quotations : — 



The Biological Survey 195 



Lectures on Problems of Insanity 195 



The Erection of a Monument to Theodor 

 Schwann 196 



Scientific Notes and News 197 



Oniversiiif and Educational News 200 



MSS. Intended for publication and books, etc., intended for 

 review should be sent to the Eciitor of ScIE^■CJ^, Garrison-ou- 

 Uudson, K. Y. 



TEE AMERICAN ASSOCIATION FOR THE 



ADVANCEMENT OF SCIENCE 



THE CONTRIBUTIONS OF AMERICA TO 



GEOLOGY ' 



In speaking of the contributions of 

 America to geology, I do not propose to 

 give an inventory of the geological facts 

 which have been made known as the result 

 of work in this country. An area of three 

 million square miles has been covered by 

 geological reconnoissance, and much of 

 that area has been surveyed in detail. It 

 is, moreover, an area interesting in many 

 respects. It is a country of vast mineral 

 wealth, leading the world in the produc- 

 tion of coal, petroleum, salt, iron, copper, 

 silver and lead, and ranking with Australia 

 and South Africa as one of the three 

 great gold-producing regions of the world. 

 It is a country presenting a remarkable 

 variety of topography and geological struc- 

 ture ; and some of its scenic features can 

 be adequately described only in superla- 

 tives. It includes vast prairies of great 

 fertility; the Missouri-Mississippi river 

 system, with thousands of miles of navi- 

 gable waters ; the broad and complex moun- 

 tain mass of the Cordillera; the Great 

 Lakes of the Canadian border, a chain of 

 fresh-water seas; the sublime cataract of 

 Niagara; the remarkable region of interior 

 drainage of the Great Basin; the geysers 

 of the Yellowstone ; the caiion system of 

 •the Colorado and its tributaries, unparal- 



* Address of the vice-president and chairman of 

 Section E — Geology and Geography, American 

 Association for the Advancement of Science, New 

 Yoi-k meeting, December, 1906. 



