and Laboratory Methods. 1311 



Obermuller. Ueber neuere' Untersuchung des Having been for many years engaged 

 Vorkommen echter Tuberkuloseereger in . ^, . , r i. v. i u -ir • 



der Milch und den Molkereiproduktin be- 1" the Study of tubercle bacilh in 

 treffend. Hyg. Rund., 10: 845, 1900. dairy products, the author in this arti- 



cle summarizes his general conclusions in regard to the proper relation which 

 should be taken towards this highly important problem. These conclusions are 

 hardly capable of brief summary. The most important are as follows : Milch 

 cows should be subjected to obligatory inoculation by tuberculin under state law. 

 Bovine tuberculosis can be reduced and, perhaps, largely gotten rid of by the 

 gradual destruction of tuberculous animals which show signs of the disease, 

 especially those with udder tuberculosis. For infants and invalids especial care 

 should be taken to use milk from sound cows only. Cream freed from tubercle 

 bacilli should alone be used for butter making. General mixed milk from the 

 market is a source of danger, unless such milk is pasteurized. The author 

 advocates the establishment of governmental bacteriological stations, whose duty 

 it shall be to test market milk for the tubercle bacillus and other pathological 

 bacteria. h. w. c. 



Tobler, Maria. Beitrag zur Frage des Vorkom- The author takes up the investigation 

 mens von Tuberkel bacillen und anderen , ^, ^ , 1 u -u j -^ 11 • 



Saurefesten Bacillen in der Marktbutter. O^ the tubercle bacillus and its allies 

 Zeit. f. Hyg. u. Inf ec, 36 : 120,1901. in the market butter of Zurich. The 



conclusions reached are, in general, in accordance with those obtained by others, 

 inasmuch as true tubercle bacilli are found in a certain number of the samples 

 of market butter. The special point of interest in the investigation is the dis- 

 covery of five new species of bacilli in the butter, which microscopically 

 resemble the tubercle bacillus and have the same power of holding stains 

 against the action of acids. These five " sauerfest " bacteria are pathogenic for 

 various animals, but they are wholly difTerent from the tubercle bacillus and 

 different, also, from the similar organisms described by Rabinowitsch and others. 



H. w. c. 



Rabinowitsch, Lydia. Ueber die Gefahr der The author has continued the investi- 

 Uebertragung der Tuberkulose durch Milch ^. ^ l 1 u -n- • j • 



und Milchprodukte. Cent. f. Bak. u. Par. i, g^tions upon tubercle bacilh m dairy 



29, p. 309, 1 90 1. products, in which she has for some 



Befund von Sauerfest tuberkelbacillenannhch- , j tt 1 



en Bakierium bei Lungen gangran. Deutsch Y^ars been engaged. Her general COn- 

 Med. Woch, 1900. elusions are expressed as follows : 



Three dairy supply companies which regularly test their cows with tuberculin, 

 and whose milk she has carefully studied, furnish a product entirely free from 

 tubercle bacilli. Other dairies, that depend entirely upon clinical examinations 

 by veterinarians, furnish milk which frequently contains living, virulent bacilli. 

 The conclusion is, of course, that a clinical examination of cows is insufficient 

 to guarantee the freedom of the milk from tubercle bacilli. The author recom- 

 mends the sale of milk from herds tested with tuberculin at a price higher than 

 that of ordinary milk. 



In the second article the author discovers in the sputum of persons suffer- 

 ing from gangrene of the lungs, a bacillus which is microscopically identical 

 with the tubercle bacillus. The organism in question, upon careful study, 

 proves not to be the tubercle bacillus, but one of the " sauerfest " bacilli which 

 are coming now to be recognized as so abundant in dairy products. 



The author makes no attempt to draw any casual connections between the 

 disease and the bacillus. h. w. c. 



