VETERINARY MEDICINE. 389 



Human and Other Types of tlie Tubercle Bacillus (pp. 651-660). He cou- 

 cluded that the time has not yet come to state positively that one type can or 

 can not be transformed into the other, but that until such a time arrives we 

 may safely take the ground that any regular or wholesale conversion of bovine 

 into human bacilli in the human body is out of the question, as contradicted 

 by most of the experimental evidence thus far presented and by certain ob- 

 servations made on the occurrence of the spontaneous disease. Other addresses 

 relating to the relations between tuberculosis in animals and man were : The 

 Relations of Human and Bovine Tuberculosis, by G. S. Woodhead (pp. 661- 

 06.5) ; On the Relations of Bovine Tuberculosis to Human Tuberculosis, by 

 S. Arloiug (pp. 666-671) ; Investigations of the Relations of Human and Bovine 

 Tuberculosis and the Tubercle Bacilli, by J. Fibiger and C. O. Jensen (pp. 

 672-681 ) ; Relations of Human and Bovine Tuberculosis, by M. P. Ravenel ; 

 The Susceptibility of Cattle to the Virus of Surgical Forms of Human Tuber- 

 culosis, by R. R. Dinwiddle (pp. 686-691) ; Tuberculous Cervical Adenitis: A 

 Study of the Tubercle Bacilli Cultivated from Fifteen Consecutive Cases, by 

 P. A. Lewis (pp. 692-696) ; The Types of Tubercle Bacilli Present in Eighty- 

 four Cases of Human Tuberculosis in Now York City, by W. H. Parks (pp. 

 697-703) ; Studies in Atypical Forms of Tubercle Bacilli Isolated Directly from 

 the Human Tissues in Cases of Primary Cervical Adenitis, with Special Ref- 

 erence to the Theobald Smith Glycerin-bouillon Reaction, by C. W. Duval 

 (pp. 704-729) ; Bovine Tuberculosis in Cuba : A Comparative Study of Bacilli of 

 Human and Bovine Origin, by J. N. Davalos and J. T. Cartaya (pp. 7^0-734) ; 

 and The Intertransmissibility of Tuberculosis, by C. F. Dawson (pp. 735-740). 



At a conference on the relations of tuberculosis of animals and of man, held 

 on October 1, in continuation of the joint sessions of Sections 1 and 7, there was 

 a general discussion (pi). 741-756). 



At the session on October 1, papers were presented relating to the diagnosis of 

 tuberculosis in animals. A. W. Bitting discussed The Infection of Swine from 

 Tuberculous Cattle (pp. 757, 758) ; A. T. Peters, Tuberculous Hogs an Indication 

 of Tuberculous Cattle (pp. 759-764) ; and G. B. Jobson, The Tuberculin Test an 

 Efficient Agent for the Detection of Bovine Tuberculosis (pp. 765-770). S. B. 

 Nelson presented A Report of the Results of the Continued Injections of Tuber- 

 culin upon Tubercular Cattle (pp. 773-782), in which he concluded that "the 

 injection into tubercular cattle of large monthly or small weekly doses of tuber- 

 culin does not have therapeutic value. The injection of constantly increased 

 daily or weekly doses of tuberculin does have therapeutic value. The evening 

 temperature is usually higher than the morning temperature in tubercular cows. 

 The oftener tuberculin injections are made into tubercular cattle, the sooner 

 the temperature reaction begins and the sooner the zenith is reached." In the 

 Report of a Commission on the Ophthalmo Reaction, presented in the name of 

 the Societe de Pathologie Comparee, by Bailliart (pp. 785-800), the following 

 conclusions were drawn : " The ophthalmo reaction is a diagnostic procedure 

 which is usually without danger if it is applied only to eyes free from tuberculous 

 lesions of any kind. It is sometimes followed by mild and transitory accidents. 

 The reaction is not always proportionate to the gravity of the lesions. Quite 

 often it is even absent during the last stages of tuberculosis. . . . Very often 

 the reaction is doubtful. In cattle, owing to the difficulties of examination, 

 doubtful cases must be regarded as negative. . . . A simple (primary) ophthalmo 

 reaction is a very unreliable procedure, and can not take the place of inoculation 

 with tuberculin. A secondary ophthalmo reaction gives very much more trust- 

 worthy results. ... A tuberculous animal only exceptional^/ fails to react to 

 this second ophthalmo reaction. It is moi-e frequent to see a positive ocular 

 reaction in a nontuberculous animal. Combined ophthalmo reaction, while 



