Micrococcus. 13 



[16. M. insectorum, Burrill {I.e., p. 319). 



Cells obtusely oval, isolated or in pairs, rarely in chains, 

 •7-1 /A (usually -8 /*) long, -55 /* broad j movements oscil- 

 latory only ; forming a zoogloea (?). 



In the digestive organs of the chinch-bug {Blissus 

 leucopterus). 



These insects sometimes die off in great numbers during apparently 

 favourable weather in summer, with every appearance of a contagious 

 disease, and it is probable that this Micrococcus is the cause of the 

 disease. It may be cultivated in meat broth.] 



[17. M. gallieidus, Burrill {I.e., p. 320). 



Cells globular, single or in pairs, ■5-72 /* in diameter; 

 movements oscillatory only. 



In the blood of the domestic fowl affected with " chicken- 

 cholera j " often described, but apparently never named 

 before.] 



[18. M. suis, Burrill {I.e., p. 320). 

 Bacillus suis, Detmers. 



Cells globular, or elongated and more or less contracted 

 in the middle, single or in pairs, rarely in chains, ■7-'8 /x in 

 diameter. 



In the blood and other fluids of pigs affected with 

 " swine-plague " or "hog-cholera."] 



Besides the diseases mentioned, it is probable that many 

 otherSj e.g. cholera, measles, scarlet fever, typhus, syphilis, 

 etc., are caused by Schizomycetous fungi. But no trust- 

 worthy observations are yet published concerning them. (See 

 Appendix C.) 



[An enormous number of other Micrococci have been 

 described by Eberth, Chalvet, Hallier, etc., but for the 

 most part without names and without precision. (See also 

 Baeterium, Chapter IV., infra.')\ 



