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, Mat 4, 1906. 



G0tiTE1:}T8. 



The Work of Hugo de Vries and its Impor- 

 tance in the Study of Problems of Evolu- 

 tion. De. T. Watland Vatjghan 681 



Scientifio Books: — 



Les tremblements de terre: Db. C. E. Ddt- 

 TON. Houston's Electricity in Every-day 

 Life: Dk. Samuel Sheldon. Woods's 

 Mental and Moral Heredity in Royalty: 

 Peofessob Edwaed L. Thobndike 691 



Scientifio Journals and Articles 694 



Societies and Academies: — 



The Geological Society of Washington: De. 

 Aethue C. Spencee. The Torrey Botanical 

 Club: Db. Marshall A. Howe. The St. 

 Louis Chemical Society: C. J. Bobomeybb. 695 



Discussion and Correspondence: — 



A Plan to ensure the Designation of Generic 

 Types: De. Ch. Waedell Stiles. Certain 

 Plant Species in their Relation to the Mu- 

 tation Theory: Witmee Stone. Isolation 

 by Choice: Db. Alfeed C. Lane. Larval 

 Conger Eels on the Long Island Coast: L. 

 S. QuACKENBUSH. Should Our Colleges 

 establish Shimmer Schools? Db. Alfbed 

 GoLDSBOBOUGH Mayee. On the Origin of 

 the Small Mounds of the Lower Missis- 

 sippi Valley and Texas: De. Robt. T. Hill. 700 



Special Articles: — 



The Availability of Celluloid in Illustra- 

 ting Chromatic Polarization: Lulu B. 

 JosLiN. Amoeba BlattcB and Amoeboid 

 Motion: De. John H. Geeould. A Culture 

 Medium for the Zygospores of Mucor 

 Stolonifer: Peofessob J. I. Hamakee. 

 The Effect of Fertilizers on the Reaction of 

 Soils: F. P. Veitch. Carbonated Milk: L. 

 L. Van Sltke and A. W. Boswoeth 706 



Notes on Organic Chemistry: — 



Preparation of Pure Ethyl Alcohol by 

 Means of Metallic Calcium; Notes on 

 Esterification: De. J. Bishop Tingle 712 



Current Notes on Meteorology: — 



Monthly Weather Revieio: Peofessob R. 

 DeC. Waed 714 



Report of the Advisory Board of the Wistar 



Institute 715 



The Earthquake at Stanford University 716 



Scientific Notes and News 717 



University and Educational News 720 



M8S. Inteoded for publication and books, etc., intended for 

 review should be sent to the Editor of Science, Garrison-on- 

 H'lrt.on.N. Y. 



THE WORK OF HUGO DE TRIES AND ITS 

 IMPORTANCE IN THE STUDY OF PROB- 

 LEMS OF EVOLUTION."- 



As Professor Osborn, in his 'Prom the 

 Greeks to Darwin,' has given an account 

 of the development of the theory of evolu- 

 tion in Europe, there is no necessity for 

 me to repeat its history. However, I 

 should like to remark in passing, that the 

 speculations of the oriental philosophers, 

 especially the early Hindoos, have not re- 

 ceived in the Occident the attention due 

 them, and to express the hope that some 

 scholar will present to us of the Occident 

 the results of the thinking of the eastern 

 sages on these problems. 



That existing species of animals and 

 plants have been derived from preceding 

 species by natural processes is now univer- 

 sally believed by biologists. The man most 

 potent in establishing this belief on a firm 

 foundation was Darwin. Here it is un- 

 necessary to do more than allude to his 

 doctrine of the struggle for existence and 

 the survival of the fittest by means of nat- 

 ural selection. Although I shall not pre- 

 sent the data that he accumulated, I desire 



^An address delivered before the Biological So- 

 ciety of Washington, on February 3, 1906. 



