172 PHYSIOLOGY OF THE BACTERIA. 
a rectilinear or eccentric motion of translation ; 
2. Some spherical granules of variable diameter, 
homogeneous, animated by a rapid gyratory move- 
ment and a movement of translation in various 
directions. The latter are certainly Jlicrococet. 
Chauveau, in an experiment designed to demon-— 
strate that the organisms alone are active, took 
ten grammes of pus from a pulmonary abscess of 
a horse attacked with acute glanders: the virulent 
elements were sonumerous that the water became 
opalescent. This pus was washed four or five 
times in five hundred grammes of distilled water, 
was then collected and dried, and finally was inoc- 
ulated, and the inoculated animal perished with 
glanders. Another, on the contrary, into which 
the filtered liquid was injected presented nothing 
abnormal. The particulate elements are, then, 
alone active. But in glanders, as in charbon, con- 
tagion is not always demonstrated. There are 
cases in which spontaneous origin appears incon- 
testable (case of M. Boulay d’Avesnes, three cases 
cited in the “ Recueil de Médecine Vétérinaire,” 
June 15, 1877). 
Finally, this opinion has recently been supported 
by Delamotte, who accords in this with Tabourin, 
Bonnaud, and Chénier. We might perhaps see 
in these cases the action of a minute germ, play- 
ing, in regard to the bacterium of glanders, the 
same réle as the germ of charbon does with re- 
gard to the Bacillus anthracis. This is an hy- 
pothesis which no researches have yet confirmed. 
As proof of the functional analogy which may 
