SCIENCE 



Friday, June 19, 1914 



CONTENTS 

 The Frospect of Human Progress: Professor 

 E. D. Carmichael 883 



Definiteness of Appointment and Tenure: Pro- 

 fessor E. D. Sanderson 890 



The Porto Bico Survey: Dri. Edmund Otis 

 HovEY ' 896 



The Ninth International Congress of Applied 

 Chemistry 898 



The Sussell Sage Institute of Pathology .... 898 



fie Notes and News 899 



and Educational News 901 



Discussion and Correspondence : — 



Sovereigns and the Supposed Influence of 

 Opportunity : Dr. Frederick Adams Woods. 

 Bacterial Blight of Alfalfa in the Salt LaTce 

 Valley: Dr. P. J. O'Gara. Further Notes on 

 Tamarisk: W. L. McAtee. A Factor for 

 the Fourth Chromosome of Drosophila: 

 Herman J. Muller. Dickerson on Cali- 

 fornia Eocene: Dr. Ealph Arnold and 

 Harold Hannibal 902 



Scientiflo Boohs :■ — 



LoeT} on Artificial Parthenogenesis and Fer- 

 tilization: Professor E. Newton Harvey. 

 Clements's Bocky Mountain Flowers: Pro- 

 fessor Charles E. Bessey. Woodward's 

 The Life of the Mollusca: Dr. Wm. H. Dall. 

 Principia atmospherica : Professor Alex- 

 ander McAdie 908 



Navigation Without Logarithms: Walter D. 

 Robinson 912 



Special Articles: — 



What Does the Medina Sandstone of the 

 Niagara Section Include?: E. M. Kindle. 

 Sheep Thyreoid Experiment with Frog 

 Tadpoles: Paul Ashley West 915 



Societies and Academies: — 



The Botanical Society of Washington : P. L. 

 Eickeb. The Anthropological Society of 

 Washington: Dr. Daniel Folkmar 919 



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

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

 on-Hudson. N. Y 



TEE PBOSPECT OF BUMAN PBOGBESS->- 

 My principal purpose this evening is to 

 invite you to look forward to the time to 

 come and to enquire as to the prospect of 

 human progress which is thus opened to 

 view. But it will be necessary to give a 

 great part of our attention to the past in 

 order to build, as it were, a lookout from 

 which we can obtain a vision of the future. 

 We shall not be so rash as to attempt a 

 prediction of events or even of discoveries; 

 but we shall try to determine the sort of 

 progress which the indications of the pres- 

 ent and the teachings of the past lead one 

 naturally to expect. This will certainly 

 be a safe procedure, provided that we can 

 find common elements of fundamental im- 

 portance in the basic characteristics of each 

 period; for it can hardly be supposed that 

 the future will suddenly depart from the 

 principles of progress which have been 

 impressed upon the race throughout its 

 long period of evolution up to the present. 



It will be necessary for us to pass in 

 rapid review the great stages of develop- 

 ment by which man has changed from a 

 beast-like savage to a cultured civilian. We 

 shall find that these stages have been 

 marked off by a few leading inventions, 

 each of them giving a fundamental new 

 element to the period of progress following 

 its appearance. In this review we shall be 

 guided primarily by the researches and 

 conclusions of ethnologists. 



It is probably impossible to conceive of 

 man existing as man and not having the 

 elements at least of language for inter- 

 course with his fellows. Therefore, by eom- 



1 An address delivered to the Graduate Club of 

 Indiana University on the evening of May 7, 1914. 



