Mat 4, 1917] 



SCIENCE 



435 



in general to suffer, because when young men 

 see the poverty of the most successful inves- 

 tigators they hesitate to enter such fields of 

 labor and the recruiting of the voluntary 

 army of science is naturally reduced. Cer- 

 tainly no scientific man has the smallest desire 

 to be a millionaire; but moderate competence 

 is useful to him as to others. A certain 

 amount of money gives him a proper influence 

 for good in society, and enables him to devote 

 himself to those investigations which his na- 

 ture tells him he is most capable of conduct- 

 ing. On the other hand, keep him in poverty 

 and he soon loses his enthusiasm; he becomes 

 a fakir sitting in rags by the roadside, and the 

 ripest years of his life are often wasted. Is 

 there any intrinsic reason why the greatest 

 efforts of the best minds in the most fertile of 

 fields should lead to poverty? Yet the history 

 of the world proves that they generally do so 

 — to the loss not only of science but of the 

 world. And why, pray ? Because when science 

 asks for her dole, the world replies, " But 

 those great men. Smith and Jones, are proud 

 to labor for nothing; why then should I pay 

 you ? " Alas, poor ignorant world does not 

 know that if Smith and Jones are genuine 

 workers they are probably too much engrossed 

 in their toil to bestir themselves for payment; 

 while if, as more often happens, they are 

 merely purveyors of others' labors, then their 

 lofty and popular pose is adopted for a pur- 

 pose. And, indeed, snobbery is often a paying 

 cult, and those who labor for nothing do little 

 but frequently get much ! 



In science as in other things, the proper and 

 honest procedure is to pay for work done; and, 

 to be frank, the encouragement of science, of 

 which we hear so much nowadays, must in the 

 end come to this — or to nothing. And in sci- 

 ence as in other things snobbery is a false 

 pose which brings only contempt upon' those 

 who adopt it. — Science Progress. 



PROCEEDINGS OF THE NATIONAL 

 ACADEMY OF SCIENCES 



The third number of Volume 3 of the Pro- 

 ceedings of the National Academy of Sciences 

 contains the following articles: 



The Condensation and Evaporation of Gas 

 Molecules: Irving Langmuir, research labo- 

 ratory. General Electric Company, Schenec- 

 tady, N. T. A discussion of the evaporation 

 vs. the reflection theory with conclusions favor- 

 ing the former. 



The Ninth Satellite of Jupiter: Seth B. 

 Nicholson, Mount "Wilson Solar Observatory, 

 Carnegie Institution of Washington. Com- 

 parison of the orbits of the Eighth and Ninth 

 Satellites. The mean period of the Ninth is 

 745 days and its diameter is probably about 15 

 miles. 



Aortic Cell Clusters in Vertehrate Embryos: 

 H. E. Jordan, department of anatomy. Uni- 

 versity of Virginia. The hemogenic activity 

 of embryonic endothelium is a normal func- 

 tion at a certain stage of embryonic develop- 

 ment. 



Bheotropism of Epinephelus Striatus Bloch : 

 Hovey Jordan, Bermuda Biological Station for 

 Eesearch, Agar's Island, Bermuda. The lip 

 region is the most sensitive part of the body 

 surface. The end organs of tactile sensitivity 

 serve also as organs of rheotropic sensitivity. 



Studies of the Genus Phytophthora : J. 

 Eosenbaum, Bureau of Plant Industry, Wash- 

 ington, D. C. A search for determining char- 

 acters of diagnostic values in testing the 

 different species. 



A Possible Function of the Ions in the Elec- 

 tric Conductivity of Metals: Edwin H. Hall, 

 Jefferson Physical Laboratory, Harvard Uni- 

 versity. A discussion of the niunber of ions 

 necessary to maintain currents of great 

 density, and of the temperature relations of 

 conductivity if due to ions. 



The Gravimetric Survey of the United 

 States: William Bowie, Division of Geodesy, 

 U. S. Coast and Geodetic Survey. A sum- 

 mary of the present status of the subject. 



The Magnetization of Iron, Nickel, and 

 Cobalt by Rotation and the Nature of the 

 Magnetic Molecule: S. J. Barnett, department 

 of physics, Ohio State University. A con- 

 firmation of the assumption that only elec- 

 trons are in orbital revolution in all the sub- 

 stances investigated. 



