SCIENCE 



Friday, January 3, 1913 



CONTENTS 



The American Association for the Advance- 

 ment of Science: — 

 Some of the Next Steps in Botanical Sci- 

 ence: Professor Chables E. Bessey .... 1 



Secent Explorations in Siberia: Dr. A. 

 Hbdlicka 13 



The Reorganization of the Medical Depart- 

 ment of the University of California 14 



Scientific Notes and News 14 



University and Educational News 18 



Discussion and Correspondence: — 



A New Weed Exterminator : Professor J. 

 C. Arthur. Greeh Refinements in Archi- 

 tecture: Dr. Edward S. Holden. The 

 Question of the Older and Newer Appa- 

 lachians: Professor B. K. Emerson 19 



Scientific BooTcs: — 



Dakin on Oxidations and Reductions in the 

 Animal Body: Professor Lafayette B. 

 Mendel. Walker on North American Dra- 

 gon Flies: Professor T. D. A. Cockerell 21 



Special Articles: — 



A Preliminary Note on the Coagulation of 

 Proteins by Ultraviolet Light: W. T. BoviE 24 



The Astronomical and Astrophysical Society 

 of America: Philip Pox 25 



Societies and Academies: — 



The New Orleans Academy of Science: 

 Professor E. S. Cocks 40 



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

 review should be sent to Professor J. McKcen Cattell, Garrison- 

 on-HudsoD, N. Y. 



SOME OF TEE NEXT STEPS IN BOTANICAL 

 SCIENCE » 



When one who has worked long in any- 

 field of science speaks before an audience 

 such as this he is expected to say something 

 about the condition of his branch of science 

 when he began work with meager and 

 poorly adapted apparatus, to contrast it 

 with its greatly improved condition to-day, 

 and to dwell with pride upon the finely 

 equipped laboratories with costly appa- 

 ratus especially designed for particular 

 experiments, to be found by the twentieth 

 century scientific student. And I must 

 confess that the temptation to do so was 

 one difficult to resist, for we who have 

 grown old in years are fain to dwell upon 

 the days of long ago with the garrulity 

 which comes with gray heads and withering 

 muscles. It has seemed to me wiser, how- 

 ever, that this evening we should look into 

 the future rather than into the past, for in 

 that direction lies the possibility of prog- 

 ress, and it is of progress that I wish to 

 speak. 



THE BOTANY OP YESTERDAY 



Yet in order that we may properly orient 

 ourselves with reference to the area cov- 

 ered by the science of botany to-day, we 

 shall have to go back a few decades to 

 understand what additions have been made 

 to its territory during this period of ex- 

 pansion. For the shrewd observer can not 

 avoid the conclusion that botany has shared 

 with the world powers in a territorial 

 growth which has extended its boundaries 

 far beyond those known to the fathers, and 



' Address of the president of the American Asso- 

 ciation for the Advancement of Science, Cleveland, 

 December, 1912. 



