BACTERIOLOGICAL NOTES 31. 
brain, and lungs an ovoid bacillus 0°34 wide by 1°20 to 
2°54 long, motile, Gram-positive, causing gas production 
in gelatin stab, cloudiness in broth, and not coagulating 
milk. Inoculation with this bacillus produced symptoms 
of distemper, particularly of the nervous type. 
Babes and Barzanesto (1897) isolated a motile bacillus 
in two cases. Seven dogs out of nine inoculated died of 
distemper in about two weeks. 
Petropawlowsky (1897) found a bacillus similar to 
Bacillus colt. 
Taty and Jacquin (1898) discovered a diplococcus in 
the central nervous system, which they regarded as the 
cause of the nervous form of distemper. . 
Jess (1899) cultivated a bacillus (1°8 to 2°34 long by 
o'6 to o'gu wide) from the nasal discharges, blood, and 
peritoneal fluid; Gram-positive, and forming a dull grey 
film on agar and a white one on potato; found to be 
pathogenic to dogs, cats, and guinea-pigs. He con- 
sidered his organism dissimilar to any of those hitherto 
discovered, and also stated that he was able to produce 
distemper experimentally with it. 
Copeman (1900) found a cocco-bacillus in the side 
secretion, tracheal mucus, and exudation from the lungs, 
which, in smears from broth, not infrequently formed 
chains, sometimes of considerable length ; Gram-negative, 
and growing readily on agar at 36° C. in greyish glisten- 
ing circular colonies ; it grows well in broth, which first 
is turbid, but later a deposit falls and the liquid clears ; 
growth on serum slow; occasionally gives a moist 
yellowish growth on potato; gelatin liquefied and milk 
not coagulated. Inoculations of dogs with living cultures 
produced attacks, occasionally fatal, of distemper. In one 
instance in which the bloodvessels of the brain were 
found to be much congested, inoculation of a tube of 
sloping agar with a platinum loopful of cerebro-spinal 
