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



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ^■VBVAN'-EMENT OF SCIENCE. 



Editorial Committee : S. Nkwoomb, Mathematics ; R. S. Woodward, Mechanics ; £. C. Pickering, 

 Astronomy ; T. C. Mendbn"HALl, Physics ; K. H. Thorston, Engineering ; Iea Rbmskn, Chemistry ; 

 Charles D. Walcott, Geology ; W. M. Davis, Physiography ; Henry F. Osborn, Paleon- 

 tology ; W. K. Brooks, C. Hart Merriam, Zoology ; S. H. Scudder, Entomology ; C. E. 

 Bkssey, N. I.. Britton, Botany ; C. S. Minot, Embryology, Histology ; H. P. Bow- 

 ditch, Physiology ; J. S. Billings, Hygiene ; William H. Welch, Pathol- 

 ogy ; J. MoKeen Cattbll, Psychology ; J. W. Powell, Anthropology. 



Friday, July 11, 1902. 



CONTENTS: 



A merican Association for the Advancement 

 of Science: — 

 The Pittslurgh Meeting: Dr. D. T. Mac- 



DOUGAL 41 



Applied Botany, Retrospective and Pros- 

 pective : Dr. B. T. Galloway 49 



Scientific Books:- — 



Wolf's Histoire de I'Observatoire de Paris: 

 Professor George C. Comstock. Pammel 

 and Weema on the Gi-asses of loioa: Pro- 

 fessor W. J. Beal. Parker and Parker's 

 Practical Zoology : Dr. M. A. Bigelow .... 59 



Societies and Academies: — 



Neio York Academy of Sciences, Section of 

 Astronomy, Physics and Chemistry: Dr. 

 S. A. Mitchell 63 



Scientific Journals and Articles 63 



Discussion and Correspondence: — 



Force and Energy: Professor Charles S. 



MiNOT. Ether Waves from Explosions: 

 Professor Frajsicis E. Nipher. Ecology : ■ 

 W. F. Ganokg. The European Pond-snail: 

 Dr. B. Ellsworth Call. Text-hooks: J. 

 Stanford Brown 64 



Shorter Articles: — 



A Netv Meteorite from Kansas: Dr. 

 Oliver C. Farrington. Notes on the 

 Lafayette and Vohnnhut l-'ontiulions and 

 some of their Bolniiinil /■'(■»/» res.- Roland 

 M. Harper. Instinct in .S'ohi/ Hi ids: Wil- 

 liam E. D. Scott. A New Short Method of 

 Multiplication : Dr. D. N. Lehmbr 67 



Current Notes on Meteorology : — 



Eclipse Meteorology ; Rainfall Variations; 

 Notes: Professor E. DeC. Ward 74 



Memorial of Haller: Professors Michael 

 Foster and Paul Heger 75 



Scientific Notes and Neics 77 



University and Educational Neiis 79 



^SS. interided for publication and books, etc., intended 

 f IT review should be sent to the responsible editor, Pro- 

 fessor J. McKeen (Jattell, Garnson-nn-Hudaon, N. Y. 



THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE. 



The fifty-first meeting, held in Pittsburgh, from June 28 to July 3, may be held to 

 be fairly typical of the general development of the Association during the last few years, 

 and as one which goes far toward realizing some of the more serious purposes of the 

 organization. 

 ■ The total number of members in attendance was 431, which places the meeting far up 

 toward the head of the list, so far as this feature is to be taken into account, and the roll 

 includes an unusual proportion of the worthiest names among American men of science. 

 Especially large attendance in physics, chemistry, mechanics and engineering may be at- 

 tributed to the opportunity afforded the members of inspecting the great number of manu- 

 facturing establishments in and about Pittsburgh, which exhibit some of the most modern 

 and interesting examples of the applications of the branches in question. This feature 



