1019] VETERINARY MEDICINE. 



Tuberculous sera gave 51.5 per cent of fixation! of any degree, while non- 

 tuberculous sera gave L8.8 per cent The proportion of higher fixation! was 

 greater with sera from clinically tuberculons The alcoholic anti 



gave the highest percentage of strong fixation! in clinically tubercnlont 

 ami the Bodihni hydroxid antigen the lowest. With the sera from Dontubercu- 

 lous cases, the greatest proportion of strong fixations was obtained with I 

 sodium hydroxid antigen and the smallest with the potato filtrate antigen. All 

 tended to give a greater percentage of strong fixations with the sera of dm 

 advanced pulmonary eases than with those of the less advanced. 



The complement fixation test in the diagnosis of tuberculosis. — A clinical 

 and laboratory study, EL F. Stoi.i. and L. Nki:man (Jour. {met. Med. 

 72 (1919), No. 15, pp. 10. ',3-101(6).— Results obtained with the complement fixa- 

 tion test for tuberculosis (human) using the Wilson antigen, previously Doted 

 (E. S. R., 40, p. 481), are reported. The conclusions are drawn thai the pi 

 tical utility of the test In the diagnosis of tuberculosis is limited by the I 

 that the highest percentage of results is obtained in obvious of the 



disease. The authors are, however, of the opinion that in ease of suspicious 

 symptoms a negative fixation test would increase to a considerable degree the 

 probability of the nontuberculous nature of a given case. 



The value of tuberculosis complement fixation in clinical tuberculosis, 

 B. Stivelman (Amer. Rev. Tuberculosis, 2 (191S), No. 9, pp. 546-550).— Tin • 

 complement fixation test with the antigen of Miller and Zinsser (B. S. II., 36, 

 p. 81) in a series of 205 cases, 22 of which were clinically nontuberculou- 

 positive results in 51.4 per cent of active and 40 per cent of inactive cases, 

 and negative results in 48.6 per cent active and 47.4 per cent inactive cai 

 In early cases the percentage of positive reactions obtained was exceedingly 

 low, increasing as the disease progressed. The author considers the test to be 

 of no greater value than the subcutaneous tuberculin test. 



Influence of Roentgen rays on tubercle bacilli, K. Sktfkrt (Monatah. Pratt. 

 Tierheilk., 29 (1917), No. 1-2, pp. 62-86, pi. 1).— This article contains a survey 

 of the literature on the subject and the report of a series of Investigations on 

 the influence of Roentgen rays on pure cultures of tubercle bacilli and on 

 guinea pigs inoculated with the bacilli. 



The results of the study indicate that In vitro the rays exert a marked influ- 

 ence on the bacilli, which is shown by inhibition of growth, lessening of viru- 

 lence, and more Intensive colorability. Smaller doses increase the growth 

 well as the virulence of the bacilli. In vivo, the rays of BUCh strength as to 

 have no effect upon normal tissue were found to decrease the virulence 'f the 

 tubercle bacilU and to have an influence upon the affected tissue. 



Infection of newborn calves and seroprophylaxis, P. Stazzi (Clin. F< ' 

 [Milan], Rass. Pol. Sanit. e Ig., 41 (1918), No. 16-17, pp. )V,-',25; abt. in I I 

 Bet?., 3 (1919), No. 1, pp. 29, SO). — An infection is described which is said to 

 occur widely among newborn calves in Italy, manifesting Itself in tin., ton 

 diarrhea or dysentery, polyarthritis with serous effusion into the joint cavity, 

 and broncho-pneumonia. The first two forms generally appear on the first day 

 after birth and are of the nature of a coiihaciiiosis of septicemic character. 

 l'.ioncho-pneumonia appears in from 15 to 20 days after birth and is a local! 

 colibacillosis. This form, which is the least frequent of the three, ha.- been 

 described previously by OomlnottJ (B. S. R., ••'•'•'. p. 280). 



As a means of prophylaxis, the author has employed for several years, with 

 considerable success, a polyvalent serum prepared by using the greatest 

 sihle number of strains of Bacillus coli isolated from CBS) B of In 



the more common cases of extra-uterine infection, one or two injections of 



