VETEftTNARY MEDTCINE. 883 



The action of tubercle bacilli upon the uninjured skin, C. Fbaenkel (Tlyfj. 

 RKiidschdK, n (1907), Ao. 15, pp. 903-906).— X small area of the skin of 22 

 guinea pigs was carefully shaved and tbe annuals were kept under observation 

 for 24 Iiours afterward to determine beyond question that no injury had been 

 done to the skin. Tubercle bacilli which had been grown on glycerin blood 

 serum were then rubbed on these shaved areas and the animals kept for further 

 observation. In all except one case a fatal general infection of tuberculosis 

 took place witliin from 2J to 30 months, although in no case was there any 

 observable change in the skin. It appears, therefore, that the tubercle hacilhis 

 at least in the case of the guinea pig is capable of penetrating the uninjured 

 skin. 



The present status of knowledge of tuberculosis, Lydia IIabinowitsch 

 (Tuberculosis, 6 (1907), No. 8, pp. 378-385).— In the opinion of the author tliere 

 is little difference in the infectiousness for man of tubercle bacilli of different 

 origin. The question whether infection takes place from bovine or human 

 sources depends largely on tlie opportunity which is offered for infection from 

 these sources, and this in turn depends upon the mode of life of the individual 

 and a number of other chance factors. 



Tuberculosis in Latin America, P. Berges (Bol. Min. Agr. [Buenos Ayres], 

 7 (1907), No. /f-5, pp. 227-25(1). — Elaborate statistics are presented regarding 

 the prevalence of tuberculosis among the various domestic animals, particularly 

 cattle, hogs, dogs, and birds, as compared with human tuberculosis in Uru- 

 guay, Argentina, Chile, and other countries of South America as well as Cen- 

 tral America and Cuba. The author concludes that there is an evident causal 

 connection between the forms of tuberculosis observed in different animals and 

 man. 



The occurrence of latent tubercle bacilli in the lymphatic glands of cattle 

 and hogs, E. Joest, C. jS'oak, and C. Liebbecht (Ztsehi: Infektionskrank. u. 

 llyg. Haustiere, 3 (1907), No. 3-4, pp. 257-293). — In recent years considernble 

 interest has attached to the question w^hether virulent tubei'cle bacilli may 

 be found in apparently unaltered lymphatic glands of food animals, and the 

 question was studied in connection with immunizing experiments. 



The authors soon came to the conclusion that from a histological standpoint 

 there is no latent tuberculosis. During the exi)erli)ients 1-11 lymphatic glands 

 from cattle, hogs, and goats affected with generalized tuberculosis were used 

 for inoculation experiments, and in these experiments it appeared that the 

 tubercle hacilli which are present in the lymphatic glands are found only in 

 tuberculous foci and not in nontuberculous tissue and that, therefore, the 

 lymphatic glands did not contain latent tubercle bacilli. The extent to which 

 apparently unaffected lymphatic glands may be infected with tubercle bacilli 

 varies considerably in individual cases, but has occurred frequently enough, 

 however, to suggest the desirability of gi-eater precautions in inspecting the 

 meat from such animals. 



Pathological alterations of the suprarenal capsules in rabies, A. E. Seli- 

 NOFE (A)-eh. Hei. Biol. \St. I'etersb.], 13 (1907), No. 1, pp. 88-93, pi. i).— After 

 death from rabies the suprarenal capsules in rabbits and dogs show few or no 

 general alterations which are api)arent to the naked eye. Upon examining sec- 

 tions under the microscope, however, either progressive or retrogressive changes 

 are noted in the case of rabbits. Quite frequently the number of cells is greatly 

 increased and an unusual rate of cell division is noted. In the suprarenal cap- 

 sules of dogs, more frequently than in rabbits, small nodules are observed 

 which are composed of minute white globules. 



Observations on rabies in cattle, J. Nessl (Tierdrztl. Zeuthl., 30 (1907), No. 

 22, pp. 359-36.'i). — Four cases of rabies were observed in a herd of cattle in 



