i>Ksnumox 01 





to the bottom of the liquefied 

 .area. 



On agar a smooth slightly 

 brownish layer is formed, and on 

 potato it is yellowish. 



They occur in water. 



Bacillus ramosus (Eisenberg). 

 Rods singly, and in chains ; fila- 

 ments. Spore-formation present. 



Colonies are composed of curi- 

 ously twisted filaments. 



The bacilli inoculated in the depth 

 of gelatine produce delicate fila- 

 ments extending in all directions 

 from the track of the needle, fol- 

 lowed by liquefaction ; later a skin 

 forms on the surface. There is a 

 sediment at the bottom of the tube. 



On agar they form a greyish 

 filamentous layer, and on potato 

 a whitish growth. 



They occur in earth and water. 



Bacillus reticularis (Jordan). 

 Rods 5 /i in length. 1 p. in width ; 

 singly, and in short chains. Motile. 



Colonies are composed of radi- 

 ating filaments, and liquefy the 

 gelatine, forming an excavation with 

 a reticulated lining. 



The bacilli inoculated in the 

 depth of gelatine produce filaments 

 extending from the track of the 

 needle, and at the upper part the 

 jelly is excavated in the form of 

 a cup. On agar they form a dry 

 layer, and on potato a white woolly 

 growth. 



Broth is made turbid, and milk 

 slowly coagulated. 



They occur in water. 



Bacillus rosaceus metalloides 

 < /tiirff-1-tnin rnsacfu.ni 

 Dowdeswell ; Magenta 

 Rods -6 to -8 /* in breadth. 



Colonies in the depth of gelatine 

 are colourless, but superficial ones 

 are prominent and magenta in 

 colour. 



On the surface of obliquely solidi- 

 fied gelatine they form a beautiful 

 magenta band with a metallic 

 lustre. The gelatine is not lique- 

 fied. Similar growths are obtained 

 on agar and potato. 



It is one of the most striking 

 of all the chromogenic bacteria. 

 Cultures have the appearance of 



having been stained with an 

 holic solution of furli-: 

 colour varit-s in siilx-nltnivs f rom 

 magenta to a seal inu-uax red. 



Bacillus rubefaciens < 

 mann). Rods 75 t. llK ,* in 

 length. ;*_' p. in width, singh 

 pairs, and in chainv 



Colonies are faintly red-! 

 yellow. 



The bacilli inoculated in 

 depth of gelatine grow alon^r 

 track of the needle and form ,i 

 greyish layer on the - later 



the jelly acquires a reddish tint. 



On agar the growth is grey 

 abundant. 



On potato the growth is at first 

 grey, later n-ddUh-brown, an<i 

 surface of the potato has a pink 

 discoloration. 



They occur in u 



Bacillus rubellus (Okada). 

 Rods resembling those of malign 

 cedema. They occur singly, in 

 pairs, and filaments: are m- 

 and possess flagella, and are <> 

 capsulated. They are anaerol 



Colonies are whitish, with <>tV- 

 shoots in the surrounding gela 

 which, later, is liquefied, and has a 

 reddish tinge. 



The bacilli inoculated in th" 

 depth of gelatine produce a growth 

 in the lower part <>f the needle 

 track composed of isolated col- 

 with radiating processes. The 

 is liquefied, at first in the 

 corresponding with the gr 

 later completely. The liq" 

 gelatine is o.lomvd red. 



In agar the growth ext 

 below upwards, and th- 

 coloured r <l 



In broth they grow rapidly. 



Th. y were isolated from 



Bacillus ruber < IJn-m.. 

 rouge <! A ' 



. .". p. long, and -7 to '*/* broad. 

 Slightly ni"- 



Colonies b-l.,w tl of 



gelatine are pale yellow, and I 

 ficial ones are blood -red. 



Inocnlat. -I in the depth 



bright red. Th. -n- is aUo forma- 

 tion of gas bnb' 



