19181 VETEEINAEY MEDICINE. 381 



the organisms reported. All the animals inoculated with the medium containing 

 the organisms which had been treated with hypochlorite solutions developed 

 tuberculosis. It is indicated that the evidence submitted, however, should be 

 considered tentative until substantiated by further work. 



Report of the committee on veterinary inspections and protection against 

 tuberculosis of the American Association of Medical Milk Commissions, 

 1916-17, B. C. Fleischnee {Jour. Amer. Vet. Med. Assoc, 52 {1911), No. S, 

 pp. 268-288). — This report presents the results obtained from a questionnaire 

 sent out by the committee to the secretaries of all the milk commissions in an 

 endeavor to determine the conditions and activities of these commissions. 

 Satisfactory replies were received from 32 (about 41 per cent) of the commis- 

 sions. From 16 of the commissions replies were received which showed that the 

 work carried on was either definitely unsatisfactory or that the function of 

 the commission had ceased to be of value to the community. 



The questionnaire and general results obtained are submitted and discussed 

 in some detail, together with recommendations of the committee to the associa- 

 tion. 



Chronic arthritis in swine, S. Sekiguchi and E. E. Ikons {Jour. Infect. 

 Diseases, 21 {1917), No. 6, pp. 526-540, pis. 2). — Of 21 cases examined hemolytic 

 streptococci were found in 2, bacilli in 9, streptococci and bacilli in 4, no organ- 

 isms in smears, sections, and cultures in 4, and in 2 cases bacteria were found 

 in either smears or sections, which, however, failed to grow in cultures. Com- 

 paratively slight pathological changes were observed in most of the cases which 

 did not yield any organisms at all or not in cultures. Pathological changes in 

 the others are described. 



A study of the bacilli isolated from the joints in some of the cases showed 

 them to be culturally alike, and in morphology and most cultural reactions to 

 resemble Bacillus pyogenes as described by Dutch and German veterinarians 

 who isolated the organisms from cattle and swine. The bacilli obtained by the 

 authors, however, did not liquefy gelatin and Loefller's serum. " While the 

 bacillary infection is apparently the etiologic agent in most of the cases included 

 in this study, and the streptococcal infection apparently a later and secondary 

 one . . . there may well be other organisms of suitable virulence which can 

 set up similar processes. It seems important, however, to emphasize the ele- 

 ment of nontuberculous infection in chronic deforming joint lesions in animals 

 otherwise in good health. " 



Subcutaneous and intravenous inoculations of the bacilli produced lesions of 

 the joints. " It is possible that puncture wounds of the skin in infected yards 

 may be the means of initial infection in some instances. The alimentary tract 

 can not be excluded, for in one case we found a marked chronic nontuberculous 

 infection of the mesenteric lymph nodes associated with arthritis. . . . The 

 occurrence of arthritis in some herds and not in others suggests local sources 

 of infection on the affected farms. It would seem advisable to exclude from 

 the hog lot any animals with chronic suppurations, whether swine, cattle, or 

 other animals, for the same reasons that cattle and other animals suffering from 

 tuberculosis are excluded to prevent tuberculosis among the hogs." 



Cultural and inoculation studies of the streptococci isolated from the joint 

 lesions were also made and are described. 



Refview of research work on hog cholera, M. Dorset {Rpt. U. S. Live Stock 

 Sanit. Assoc, 20 {1916), pp. 42-51). — From experimental work on the transmis- 

 sion of hog cholera the following general results are noted : 



Results were obtained from which the author concluded that hog cholera 

 is contagious at all stages, including the stage of incubation. Data obtained 

 from some preliminary work showed that not all recovered pigs are cholera 



