3SS 



MICRO-ORGANISMS AND DISEASE [chap. 



it differs from it in growing slower than this latter, the lique- 

 faction proceeds slower, and there are not present the 

 voluminous fluff)' masses at the bottom of the liquefied 

 gelatine. The spores in the bacillus of s)'mptomatic 

 charbon are generally situated terminally in the bacilli. 



Arloing, Cornevin, and Thomas have shown that if small 

 quantities of the fluid of the natural tumour (muscle fluid) 



Fig. 15S, — Film Svecimen oe a Cliltuije of B.^cillus oF.SvMrToniATic Chari'.on 

 sHLiwiNc riiK o\AL Spores, o.ne in each B-acillus situated tekjmenallv. 



be injected subcutaneously into cattle only a local though 

 typical tumour is the result ; the animals recover, and then 

 are possessed of immunity against further inoculation with 

 otherwise fatal doses. 



Further they found that three to five drops of the tumour 

 fluid injected into the vein of cattle — but without inocula- 

 ting the subcutaneous tissue around the vein — produce only 

 a transitory febrile disturbance ; the animals quickly 



