168 



SCIENCE 



[N. S. Vol. XLV. No. 1155 



0. PROPHYLACTIC RACE HYGIENE 



Abatement of Racial Poisons, lead com- 

 pounds, narcotics, syphilis and especially the 

 use of alcohol. 



Progressive Taxation of alcoholic liquors. 



Treatment as a state function, of aU mala- 

 dies injurious to the race (alcoholism, plumb- 

 ism, narcotism, syphilis, gonorrhea). 



Health Declaration as a requisite to marriage. 



Of these maternity insurance and the last 

 three items have been already put into opera- 

 tion by the government. 



Under the title of "Race hygiene," Dr. 



Mjoen has lately published, in Norwegian, an 



important work setting forth the scientific 



reasons for each of the lines of action proposed. 



David Stake Jordan 



In the tables only original papers have been 

 considered and papers of less than one page 

 were not included. One page of the Journal of 

 Industrial and Engineering Chemistry has 

 been counted as equal to three pages of the 

 other journals. The journals selected for 

 comparison are: 



American Chemical Journal, 

 Journal of the American Chemical Society, 

 Journal of Physical Chemistry, 

 Journal of Biological Chemistry, 

 Journal of Industrial and Engineering 

 Chemistry. 



In preparing the data all articles were listed 

 on cards and the cards grouped in different 

 ways to prepare the successive tables. 



table I 

 Total Number of Articles and Pages in Each Journal 



Journal of Biological Chemistry 



Journal of Industrial and Engineering Chemistry 



Journal of the American Chemical Society 



Journal of Physical Chemistry 



Total 



269 



218 



204 



19 



2,291 

 1,508 

 2,345 



202 

 124 

 60 

 30 



150 



78 



6,103 



A CENSUS OF THE PERIODICAL LITER- 

 ATURE OF CHEMISTRY PUBLISHED 



IN THE UNITED STATES 

 During recent years there has been a rapid 

 increase in chemical research in the United 

 States. The statistics given in the following 

 tables have been compiled to secure a rough 

 estimate of this increase. In examining the 

 tables it should be remembered that they are 

 of value only in giving a statistical measure of 

 the growth of chemical research and that the 

 details are liable to be misleading. It some- 

 times happens that a single paper covering a 

 'few pages is of far greater value than dozens 

 of other papers which may cover hundreds of 

 pages. 



table n 

 Distribution among Classes of Institutions 



