314 BRIEF HISTORY OF BACTERIOLOGY UP TO 1881 



1838. Boehm, cholera, saw organisms in stools (not the 



cause) . 

 1838. Dubini, discovered Ankylostoma duodenale. 



1838. Ehrenberg, study of forms. 



1839. Schonlein, Favus, Achorion schoenleinii. 

 1839-1841. Berg, Thrush, O'idium albicans. 



1840. Henle, theory of contagious diseases. 



1841. Fuchs, bacterial cause of blue milk. 



1842-1843. Gruby, Herpes tonsurans, Trichophyton ton- 

 surans. 



1843. Klencke, inoculations of tuberculous material into 

 rabbit. 



1843. Holmes, puerperal fever contagious. 



1845. Liebert, a potato rot, Peronospora infestans. 



1846. Leidy, Joseph (American Naturalist), Trichina 



spiralis in pork. 



1846. Eichstedt, Pityriasis versicolor. Micros poron furfur. 



1847. Semmelweiss, recommended disinfection to prevent 



puerperal fever. Not followed. 

 1849. Leidy, considered "vibrios" to be plants. 



1849. Pollender, Anthrax, saw rods in blood. 



1850. Davaine and Rayer, Anthrax, saw rods in blood. 



1851. Griesinger, Egyptian chlorosis, Ankylostoma duo- 



denale. 



1851. Bilharz, Bilharzia disease, Schistosomum hemato- 



bium. 



1852. Kiickenmeister, tapeworm, Tcenia solium. 

 1852. Perty, saw spores in bacteria. 



1854. Cohn, classed bacteria as plants. 



1855. Cohn, disease of flies, Empusa muscoB. 

 1857. Nageli, named bacteria, Schizomycetes. 



1857. Pasteur, lactic, acetic, butyric acid fermentation. 



1860. Zenker, Trichinosis, Trichinella spiralis. 



1861. Pasteur, disproof of spontaneous generation. 

 1863. Davaine, transmitted anthrax by blood injection. 

 1865. Pasteur, Pebrine of silkworms, Nosema bomhycis. 



The first insta7ice of a protozoan shown to be the 

 cause of a disease in a higher animal. 

 1865. Villemin, repeatedly transmitted tuberculosis to 

 rabbits. 



