104 NATIONAL TRENDS IN BIOLOGY 



their appreciation by the many public honors rendered 

 them. 



In Mexico the work has again centered around the clas- 

 sification of food and medicinal plants, and agricultural 

 effort. Professor A. L. Herrera has, however, developed 

 what he calls a new biological science, named La Plasmo- 

 genia. He has been able to simulate living organisms by 

 a number of oil droplets, and from his findings has at- 

 tempted to work out a philosophy of life. 



Europe 

 Austria 



The Austrians, due to the impetus given through the 

 rediscovery by Erich Tschermak, together with De Vries 

 in Holland and Correns in Germany, of the work of their 

 great countryman Johan Gregor Mendel, did a vast quan- 

 tity of experimental work in general zoology and physiol- 

 ogy. Side by side with this experimentation, much research 

 is done in morphology and in systematic zoology. These 

 latter efforts were developed especially by various scien- 

 tific expeditions undertaken for that purpose, as well as 

 by studies carried on with museum materials. 



Further intensive studies were made on the ascertain- 

 ing of new genera and species formation, and finally there 

 was a search for new evidence which would substantiate 

 or falsify the findings set forth in the older literature. 



The most important names in biology are : 



1. Johan Gregor Mendel, who deserves the title of the 



