126 A MANUAL OF BACTERIOLOGY 



According to Quist, 1 artificial cultivations of M. 

 vaccinice have been used, with success, for vaccina- 

 tion purposes. 



M. vaccinice (Fig. 33, 1) occurs singly, in pairs, 

 chains, and colonies. 



Micrococcus endocarditicus. This microbe has 

 been found by numerous observers in masses and 

 chains in the granulations, blood-vessels, the valves 

 and muscles of the heart in endocarditis ulcerosa ; 

 and there is little doubt that the disease is due to 

 this microbe. M. endocarditicus measures from 0'5 

 to 1 fjb in diameter, and occurs singly and in chains. 

 This microbe is capable of assuming the zoogloean 

 state, and no doubt when in this state it gives rise 

 to embolism. 



The same microbe has been found in the spleen, 

 kidneys, and urine. 



Micrococcus in Measles. Dr. Keating 2 of Phila- 

 delphia, and subsequently Cornil and Babes, 3 have 

 observed the presence of micrococci (singly and 

 as diplococci) in the capillary vessels of the skin, 

 in the catarrhal exudations, and in the blood of 

 persons suffering from measles. The same microbe 

 has also been found in the urine during the course 

 of the disease. This microbe has not yet been 

 cultivated. 



Dr. Salisbury, in 1862, stated that measles was 

 due to a certain fungus derived from musty straw. 

 Since that date, the pathogenic nature of Salisbury's 



1 St. Peter sburgh Med. Wochenschrift, 1883. 



2 Philadelphia Medical Times, 1882. 



3 Les Bacteries, 1885. 



