A CENTURY OF ZOOLOGY IN AMERICA 419 

 part by the sending of many papers to be published in 

 European journals (a necessity most discreditable to 

 American zoology) and in part by the establishment 

 et additional means of publication. Of the latter the 

 Anatomical Record, now in its fourteenth volume, was 

 begun m 1906 for the prompt publication of briefer 

 papers on vertebrate anatomy, embryology and histology 

 and for preliminary reports and notes on technique. 



During the past few years has come a great advance in 

 the experimental breeding of plants and animals. Prob- 

 lems in heredity and evolution have taken on a new 

 interest since the importance and validity of Mendel's 

 discovery have been recognized. To meet this develop- 

 ment of biology the journal Genetics was begun in 1916 

 for the publication of technical papers, while the Journal 

 of Heredity, modified from the American Breeders Maga- 

 zine, is devoted to popular articles on animal and plant 

 breeding, and Eugenics. 



On the whole, the science of zoology is now assuming 

 a closer relation to practical affairs. Entomology, for 

 example, is now represented by the Journal of Economic 

 Entomology, of which 10 volumes have been issued since 



1907. ^ The Journal of Animal Behavior covers another 

 practical field of research. The Proceedings of the Soci- 

 ety for Experimental Biology and Medicine, starting in 

 1903, the American Journal of Physiology, and several 

 other publications cover the physiological field. The 

 Journal of Parasitology, established 1914, now in its 

 fourth volume, is devoted to the interests of medical 

 zoology. The Auk, now in the 34th volume of its new 

 series (42d of old series), is the official organ of the Amer- 

 ican Ornithologists Union and is devoted to the dissemi- 

 nation of knowledge concerning bird life. The Annals 

 of the Entomological Society of America, established in 



1908, and now in its 10th volume, is one of several import- 

 ant entomological journals. The Nautilus, of which 28 

 volumes have been issued, is one of the more successful 

 journals devoted to conchology. This list might be 

 extended to include numerous other periodicals of import- 

 ance, both technical and popular, which have been of great 

 service in the various fields of biology. 



In addition to these are the many volumes of syste- 



