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. 



Friday, January 12, 1906. 



CONTENTS. 



The American Association for the Advance- 

 ment of Science: — 

 The New Orleans Meeting: Professor 

 Clarence A. Waldo 41 



The Relation of Mechanics to Physics : 

 Professor Alexander Zfwet 49 



The Sanitary Value of a Water Analysis: 

 Professor Leonhabd P. Kinnictjtt 56 



Scientific Books: — 



Schnabel's Metallurgy: Dr. Joseph 

 Struthees. Some Recent Books on 

 Analytical Chemistry: Dr. Charles Will- 

 iam FouLK. Eastwood on the Trees of 

 California: Professor Albert Schneider. 66 



Societies and Academies: — 



The Biological Society of Washington: 

 E. L. Morris. The Torrey Botanical Cluh : 

 Roland M. Harper. The California Branch 

 of the American Folk-lore Society: Pro- 

 fessor A. L. Kroeder 68 



Discussion and Correspondence: — 



The Soils for Apples: Professor E. W. Hil- 



GARD. Isolation as one of the Factors in 

 Evolution : Dr. E. A. Ortmann 70 



Special Articles : — 



Reactions in Solutions as a Source of 

 E.U.F.: Chas. A. Culver. Pear-leaf 

 Blister-mite : P. J.. Parrott 72 



Quotations : — 



The Metric System 73 



Current Notes on Meteorology: — 



Meteorology at the Eighth International 

 Geographic Congress; Report of the Chief of 

 the Weather Bureau; Health, Disease, 

 Deaths and the Weather: Professor R. 

 Dec. Ward 74 



The American Physiological Society 76 



The Congress of the United States 76 



Scientific Notes and News 76 



'.rsity and Educational Neics 80 



MSS. iuteudedfor pablioation and books, etc., intended 

 for review ehould be sent to tlie Editor of Science, Garri 

 Bon-on-Hudson, N. Y. 



THE NEW ORLEANS MEETING OF THE AMERICAN ASSOCIATION 

 FOR THE ADVANCEMENT OF SCIENCE. 



EEPORT OF THE GENERAL SECRETARY. 



The third meeting of the association was held in Charleston, S. C, in 1850. At that 

 time there were 622 members. The number at the meeting is not given. It was prob- 

 ably a negligible quantity, for until 1905 the experiment of a meeting in the south was 

 not again tried ; though, of course, the failure to meet again in that section was largely 

 due to the fact that until recently the only time available for an annual meeting has 

 been the hot summer months. The registration at New Orleans was 233. The attend- 

 ance of unregistered members of affiliated societies would raise this number to a prob- 

 able total of 300. 



It will be noticed that a comparatively small number of affiliated societies thought it 

 wise to follow the association on so long an excursion from the usual places of meeting. 

 Assurances have been abundantly given that in the New York meeting most of the 

 societies usually affiliating will resume that relation to the association. 



