XL] BACILLUS: PATHOGENIC FORMS. 133 



and found that it contained the dumb-bell micrococcus 

 described by M. Pasteur; but this was accidental contamina- 

 tion ; there was present the minute bacillus, and the action 

 of such lymph was due not to the micrococcus but to this 

 bacillus. 



Artificial cultivations made in broth and hydrocele fluid 

 from diseased organs of the pig, mouse, and rabbit, after an 

 incubation of twenty-four hours at temperatures ranging 

 between 30 and 42 C. contain the above rods, which crowd 



FIG. 65 FROM A SECTION THROUGH THE KIDNEY OF RABBIT DEAD OF SWINE 

 PLAGUE, SHOWING A MALPIGHIAN CORPUSCLE, THE CAPILLARIES OF THE 

 GLOMERULUS BEING TRANSFORMED INTO HYALINE IMPERMEABLE CYLINDERS. 



i. Bacilli. 

 Magnifying power 500. (Stained with Spiller's purple.) 



the nourishing fluids, all being rather short, about 0*002 to 

 0-003 mm. long, and all possessed of the power of active 

 locomotion, such as is known to be possessed by the septic 

 bacterium termo and bacillus subtilis. During the following 

 days of incubation, while the rods multiply, many of them 

 lose their motility, grow longer, up to 0-005 mm - an( ^ more > 

 and in some of the longer samples bright spores make their 

 appearance, one spore at one or both ends or sometimes in 

 the centre. 



