SPECIES DESCRIBED BY VARIOUS WRITERS. 2OI 



similar to Bacterium termo, '6 i ft thick, 2 3 ju long. 

 They occur on white of egg, forming a violet pigment. 



Bacterium brunneum, Schroter. Motile rods, 

 producing a brown colour. They are observed on 

 a rotting infusion of maize. 



Bacterium of septicaemia, Davaine. Cells 

 resembling Micrococcus of septic cemia in rabbits (p. 126). 

 They were isolated from putrid ox-blood, and pro- 

 duced septicaemia in rabbits, but differ from the 

 microcoicus referred to, in that they produce a fatal 

 result in guinea-pigs, but have no effect on birds. 



Bacterium hyacinthi, Wakker. Cells resem- 

 bling Bacterium termo. Observed in the yellow 

 slime of diseased hyacinth bulbs. 



Bacterium fcetidum, Thin. Cocci, short rods, 

 long rods, and leptothrix. The cocci are 1^25 1-4 

 IJL in diam., and occur singly or in pairs. Spore- 

 formation is observed in the rods. They were 

 isolated from the exudation in a case of profuse 

 sweating of the feet, and the odour was noticeable 

 in the cultivations. ( Vide Bacillus saprogenicus.) 



Bacterium decalvans, Thin. Cocci, singly or 

 in pairs, i'6 p in length. Observed in the roots of 

 the hair in cases of Alopecia areata. 



Bacterium photometricum,* Engelmann. 

 Cells slightly reddish in colour, which react in a 

 very high degree under the influence of light. 



Bacillus tremulus. Rods shorter and thinner 



* Engelmann, Jour. Royal Microscop. Soc., 1882, page 656; and 

 1883, page 256. 



