382 EXPERIMENT STATION" EECOED. 



After from 3 to 4 weeks the embolic tubercles have the size of a pin head, and 

 after from 5 to 6 weeks assume the size of a hemp seed. Caseation seems to 

 be dependent upon the vlrulency of the organism and the number given. Calcifi- 

 cation in 50 days, as stated by MacFadyean, is possible. The bronchial- 

 mediastinal glands 2 weeks after intravenous infection are swollen but without 

 the macroscopic appearance of tubercle formation. 



In regard to children infected with the bovine type of bacillus, and the 

 changes taking place in the bovine type of bacillus as a result of remain- 

 ing in man for many years, A. Weber and K. Steffenhagen {Tuherkulose 

 Arb. K. Gsndhtsamt., 1912, No. 11, pp. 1-2 Jj ; abs. in Berlin. Ticrdrztl. Wchnschr., 

 29 (1918), No. -'/, p. 64). — Five children infected with the bovine type of bacillus 

 were kept under observation for several years. Four of the children had infec- 

 tions of the cervical glands but without severe systematic or local effects. The 

 fifth child was affected with bone tuberculosis in which there were repeated 

 exacerbations accompanied by a discharge of purulent and other secretions. 

 With this case it was interesting to note that the bovine type of bacillus, after 

 residing for lOi years in the body, still retained the bovine type characteristics. 



Tuberculosis in nursing children, K. Steffenhagen {Tuherkulose Arb. K. 

 Gsndhtsamt., 1912, No. 11, pp. 52-170; abs. in Berlin. Ticrdrztl. Wchnschr., 29 

 (1913), No. 4, p. 64). — The results of investigating 40 cases of certain tubercu- 

 losis in children showed that the source of infection was chiefly man. Only 

 in 3 cases was the bovine type of bacilli noted, and in 1 case both tjiies were 

 isolated. The mesenteric glands contained the bovine type and the bronchial 

 glands the human type. 



Comparative investigations in regard to tubercle bacilli of various origins, 

 K. Steffenhagen (Tuberkulose Arb. K. Gsndhlsamt., 1912, No. 11, pp. 2o-51; 

 abs. in Berlin. Tierarstl. Wchnschr., 29 (1913), No. 4, p. 64)- — It is stated that 

 bovine tubercle bacilli are rarely found in adults, and in children the disease 

 produced by the bovine type manifests itself as lymphomata colli. 



Investigations in 'regard to the type of bacillus present in the sputum of 

 tubercular subjects (man), E. A. Lindemann (Tuberkulose Arb. K. Gsndhtsamt., 

 1912, No. 12, pp. 11-lOS; abs. in Berlin. Tierarstl. Wchnschr., 29 (1913), No.^4, 

 p. 64). — A description of 41 cases in which the human type of bacillus was 

 found 40 times and the remaining case being a mixed infection. The subjects 

 were from 20 to 30 years of age. 



Tuberculous animals and the part they play in the infection of man, 

 A. Calmette (Rev. Sci. [Paris], 50 (1912), II, No. 17, pp. 516-519).— The author 

 believes that the suppression of tuberculosis in man must be done from 2 

 focuses, (1) prevention of infection from man to man, and (2) the eradication 

 of tuberculosis from cattle. 



The tuberculous cow in relation to human health, M. H. Reynolds (A^ner. 

 Vet. Rev., 42 (1913), No. 6. pp. 640-653) .—This article shows the importance 

 of prophylaxis against tuberculosis in bovines and as a precautionary measure 

 against the occurrence of this disease in man. The data are accompanied by 

 statistics. 



About the value of the meiostagmin reaction for diagnosing human and 

 bovine tuberculosis, G. Roncaglio (Clin. Vet. [Milan], Rass. Pol. Sanit. e Ig., 

 35 (1912), No. 15-16, pp. 633-644, fig. 1; ahs. in Berlin. Tierarstl. Wchnschr., 

 29 (1913), No. 6, pp. 103, 104). — The reaction, according to the author, is a 

 good one for diagnosing both human and bovine tuberculosis. 



A possible test for the differentiation between human and bovine types 

 of the tubercle bacillusf J. Fraser (Brit. Med. Jour., 1912, No. 27 OS, pp. 1432- 

 1434). — "The most reliable test which we possess in the process of differen- 

 tiation between human and bovine tubercle bacilli is the inoculation of certain 



