DESCRIPTION OF SPECIES. 



505 



Inoculated in the depth of gela- 

 tine, the bacilli produce liquefaction 

 and colour the liquid greenish- 

 yellow. 



On agar they form a yellowish- 

 white layer. 



They were isolated from the 

 stomach of a dog. 



Bacillus carnicolor (Tils). — 

 Rods 2 fi long, and -5 ^ broad. 

 Singly actively motile. Spore- 

 formation not observed. 



Colonies are in the form of cup- 

 shaped depressions. 



Inoculated in the depth of gela- 

 tine they grow rapidly along the 

 whole track of the needle, forming 

 a funnel-shaped area of liquefaction 

 at the bottom of which there is a 

 pale pink deposit. 



On potato they form slowly a 

 dark flesh-coloured growth. 



They occur in water. 



Bacillus carotarum (A. Koch). 

 - — Rods 97 to 1'05 fi in length and 

 filaments. 



Colonies white and circular. 



Inoculated in the depth of gela- 

 tine the bacilli grow slightly in the 

 track of the needle and abundantly 

 on the surface. 



On agar they form a white, and 

 on potato a faintly brown layer. 



They occur on boiled carrot and 

 beet. 



Bacillus cavicida (Brieger).— - 

 Rods morphologically and in culti- 

 vations similar to Bacillus coli com- 

 munis. 



Cultures are said to be patho- 

 genic in guinea-pigs. 



They were isolated from faeces. 



Bacillus cavicida Havaniensis 

 (Sternberg). — Rods 2 to 3 ^i in 

 length, and -7 ^t in width, singly 

 and in pairs. 



Colonies are of a p^le-straw 

 colour. 



Inoculated in the depth of gela- 

 tine the bacilli form small trans- 

 lucent pearl-like spherical colonies, 

 and on the free surface the growth 

 is limited. 



On potato the growth is at first 

 thin and dirty yellow, and later 

 gamboge yellow. 



Guinea-pigs inoculated subcuta- 



neously die in ten ' or twelve 

 hours. 



They were isolated from the 

 intestinal contents in a fatal case 

 of yellow fever, by inoculation of 

 guinea-pigs. 



Bacillus chromo-aromaticus. — 

 Rods which liquefy gelatine and 

 form a yellowish-white scum on 

 the surface. 



On potato the growth is irides 

 cent and brownish. 



In broth a scum forms on the 

 surface and the broth is coloured 

 greenish-blue. Cultures have an 

 aromatic odour. 



They are said to produce pneu- 

 monia and pleurisy in rabbits. 



They were isolated from a pig 

 with post-mortem appearances of 

 swine-fever. 



Bacillus circulans (Jordan). — 

 Rods 2 to 5 fi. in length and 1 ^i in 

 width, singly and in short chains. 



Colonies are brownish. 



Inoculated in the depth of gela- 

 tine they liquefy the medium in 

 the track of the needle, forming 

 a conical cavity at its upper part. 



On agar they form a translucent 

 film. 



Milk is slowly coagulated. 



In broth they produce turbidity 

 and a slimy deposit. 



They occur in water. 



Bacillus citreus cadaveris 

 (Strassmann). — Rods '9 fi in length, 

 •6 fjL in width, singly and in chains. 



Colonies pale yellow. 



Inoculated in the depth of gela- 

 tine the bacilli form minute colonies 

 along the track of the needle, and 

 at its upper part liquefy the gela- 

 tine and produce a yellow deposit. 



They were found in the blood 

 after death. 



Bacillus cloacae (Jordan). — 

 Short rods -8 to 1-9 ju. in length, 

 •7 to 1 /* in width, singly and in 

 pairs. 



Colonies circular, yellowish. 



Inoculated in the depth of gela- 

 tine liquefaction occurs in the track 

 of the needle, an iridescent scum 

 forms on the surface, and there is 

 an abundant deposit. 



On agar the growth is milk- 



