690 EXPEKIMENT STATION KKCOKD. 



producing a gradual modification of the virulence of this virus. 

 Desiccated sheep-pox virus was subjected to this temperature for 

 periods varying from 14 to 24 daj's. The inoculation of experimental 

 animals was performed each day during the time that the virus was 

 exposed to this temperature. A gradual diminution in virulence was 

 noticed after the sixteenth day. A temperature of 30' C. was found 

 to produce a too rapid and irregular modification of the virulence. 



A diagnostic lesion in rabies, J. A. Gii-kutii ( Yetermm'ian^ 73 

 {1900)^ X<>. 870, 2>p. Slo-SW). — The lesions heretofore described as 

 diag'nostic of rabies, such as vascular lesions, pigmentary atrophy, 

 rabic tubercles of Babes, and the cellular lesions of Golgi, are consid- 

 ered unreliable. Peculiar lesions have been discovered in the periph- 

 eral, cerebro-spinal, and sympathetic ganglia which are regarded as 

 specific in character. The action of the rabies virus is made manifest 

 by proliferation of the cells of the endothelial capsule, which causes 

 a destruction of a number of nerve cells. It is stated that the com- 

 parison of a section of a normal spinal ganglion of the dog with a 

 similar one taken from an animal dead of rabies renders the diagnosis 

 extremely easy. 



An outline of a law regulating- the slaughter of animals and inspection of 



meat {AfcJi. l>fiif. Landu-. Riith><, 24 {lUOO), jqi. 4o-oS). — A report on the diseussion 

 of this 8ul)ject at the twenty-eighth meeting of tl\e German Agricultural Commission. 



Remarks on plague in the lower animals, F. G. Clemow {British Med. Jour., 

 1900, Nos. 2054, pp. 1141-1146; 2055, pp. 1216-1219).— The author gives detailed 

 notes on the occtirrence of plague in a large varietj' of animals, among which mention 

 may be made of monkeys, rats, mice, squirrels, guinea pigs, marmots, rabbits, dogs, 

 cats, horses, sheep, goats, pigs, cattle, vultures, etc. Rats may become infected with 

 this disease from the soil, grain, flesh of other animals, rag8, and insects. 



An experiment in the transmission of syphilis to two calves, JNI. P. Ravexel 

 {Jour. Com}). Med. and Vet. Arch., 21 {1900), Xa. .5, jq). ;?0'-^-;?6'6').— Two experiments 

 were made upon calves, during which syphilitic material was rubbed into scarifica- 

 tions of the skin. The subsequent history of these cases indicated clearly that the 

 disease was not transmitted to the calves. Both calves were tuberculous, and this 

 may be of significance from the known fact of the especial susceptibility of tubercu- 

 lous human patients. 



An outbreak of tuberculosis among cattle at an altitude of 7,000 feet, 

 S. W. McClure {Jour. Cornp. Med. and Vet. Arch., 21 {1900), Xo. 7, p. 410).— Fixe 

 years previous to the outbreak of tuberculosis on this ranch, a Jersey bull had been 

 imported from an eastern breeder. The bull later developed symptoms of tubercu- 

 losis and died. Three other cattle belonging to the herd died with the same symp- 

 toms. On investigation by the author, 5 other animals were found to be tuberculous 

 and were killed and examined. These cattle had not been in a stable, but were 

 allowed to range freely under conditions which would seem to be exceedingly unfa- 

 vorable for the development of tuberculosis. 



Tuberculosis of the udder in cows, A. Bekgstraxd {Lundtmannen, 11 {1900), 

 Xo. 27, pp. 425-428). — This is a detailed discussion of the results obtained by Kiihnan 

 in his investigations on this disease. 



Tuberculosis of the udder, H. Lermat {Jour. Agricok [Paris'], 11 {1900), Xo. 

 126, p. 16l).—Bne-i statistical notes on the prevalence of mammary tuberculosis. 



