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 Micrococci. 

 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 so numerous 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 " Eecueil de Mtjdecine Ve'te'rinaire," 

 June 15, 1877). 



Finally, this opinion has recently been supported 

 by Delamotte, who accords in this with Tabourin, 

 Bonnaud, and Chenier. We might perhaps see 

 in these cases the action of a minute germ, play- 

 ing, in regard to the bacterium of glanders, the 

 same role as the germ of charbon does with re- 

 gard to the Bacillus anihracis. This is an hy- 

 pothesis which no researches have yet confirmed. 

 As proof of the functional analogy which may 



