ZOOLOGY 339 



LANGLOIS; in anatomy under NICOLAS ("Bibliographic 

 anatomique"); in parasitology by BLANCHARD ("Traite 

 de zoologie") and by BRUMPT; in histology by PRENANT 

 (author of a well-known textbook of embryology); and 

 in comparative and experimental embryology by LOISEL. 



At the College de France, HENNEGUY offers work in 

 comparative and experimental embryology, and at the 

 Laboratoire de Cytologie courses in cytology. General 

 biology is under the charge of GLEY, and histology of the 

 nervous system under NAGOETTE. In addition should 

 be mentioned the laboratory of histology directed by 

 JOLLY. 



At the Museum d'Histoire Naturelle, there are ex- 

 cellent opportunities for the study of particular divisions 

 of zoology, as under PERRIER, comparative anatomy; 

 ROULE, fishes, amphibia, and reptiles; JOUBIN, annelids 

 and mollusks; BONNIER, entomology; TROUESSART, 

 birds and mammals; BOULE, palaeontology. 



At the Pasteur Institute, organized for complete instruc- 

 tion in bacteriology, serum pathology, etc., are Roux, the 

 Director; METSCHNIKOFF (author of researches on in- 

 flammation, immunity, etc.); and other distinguished 

 scholars. 



Zoology has also been enriched by French investiga- 

 tions along special lines of interest giving rise to sub- 

 divisions of its larger provinces. There are, for illustra- 

 tion, unusual opportunities for the pursuit of proto- 

 zoology and parasitology, of entomology and palaeontology, 

 especially that part of it that relates to the fossil remains 

 of man. 



Protozoology and Parasitology. In regard to unicel- 

 lular organisms, there has been created the department 

 of protozoology with especial reference to pathogenic 

 protozoa, and with this there is often combined the study 

 of internal parasites, forming the subject of parasitology. 



