1917] VETERINARY MEDICINE. 481 



The pathogenic action of Ixodidse, S. E. Paeodi {An. Soc. Rural Argentina, 

 51 (.1917), No. 2, pp. 111-125, figs. If). — An account of the protozoan parasites 

 transmitted by ticks in Argentina and their effect upon the host. 



Application of the complement-fixation test to tuberculosis, N. B. Burns, 

 F. H. Slack, P. Castleman, and K. Bailey {Jour. Amer. Med. Assoc, 68 

 {1917), No. 19, pp. 1386-1S89) .—From the results of the investigation reported 

 the authors indicate that the complement-fixation test appears specific for 

 tuberculosis. 



It is considered that the test will prove of great value as a diagnostic aid in 

 cases showing suggestive physical signs, but in which it is impossible to demon- 

 strate the presence of tubercle bacilli in the sputum. " In such cases positive 

 complement-fixation reactions would be strong evidence of the disease. A single 

 negative would be inconclusive, but several negatives would indicate that no 

 active tuberculous process was present." 



The value of determining wliether a case of tuberculosis clinically apparently 

 arrested still has an active focus, as indicated by positive reaction, is noted. 



Complement fixation in tuberculosis with the " partial antigens " of Deyke 

 and Much, A. C. Woods, G. E. Bushnell, and C. Maddux {Jour. Immunol., 2 

 {1917), No. 3. pp. 301-325). — One hundred and seventy-six normal and tuber- 

 culous sera were tested against partial antigens and against whole bacillus 

 emulsion antigen. Ninety-one per cent of the sera from cases classed clinically 

 as inactive tuberculosis reacted negatively to the antigens. Ninety per cent of 

 the sera classed clinically as incipient tuberculosis, 87 per cent of those classed 

 as active, and 92 per cent of those from advanced cases reacted positively to the 

 partial antigens. 



The results are discussed in some detail. A list of 26 references to the 

 literature cited is included. 



The influence of certain organic substances on the growth of the tubercle 

 bacillus, P. A. Lewis {Jour. Expt. Med., 25 {1917), No. 3, pp. ^4i-459 ) .—The 

 growth-restraining power of a large number of anilin dyes on Bacillus tuber- 

 culosis and B. typhosus has been determined. 



Many uyes were found to possess a special restraining power for the tubercle 

 bacillus. " This capacity to restrain growth in the case of the tubercle bacillus 

 apparently bears no simple relation to true disinfectant action. Opinion as to 

 whether the active substances exert a truly specific activity against the tubercle 

 bacillus or whether the activity is determined by the peculiar conditions im- 

 posed by the growth of this bacterium as a surface membrane is left for future 

 consideration." 



The influence of typhoid vaccine on tuberculous guinea pigs, Helen Bald- 

 win and Elise S. L'Espeeance {Jour. Immunol., 2 {1917), No. 3, pp. 283-299, 

 pi. 1, figs. 11). — Experiments are reported which show that a greater resistance 

 to tubercle inoculation developed in animals immunized against typhoid than 

 in the unimmunized animals, and that animals with active tuberculosis ap- 

 peared to possess an increased resistance when given typhoid vaccine. 



The presence of the tubercle bacillus in butter, A. C. Mabchisotti {Rev. 

 Facult. Agron. y Vet. La Plata, 2. ser., 12 {1917), No. 3, pp. 279-298).— In a 

 bacteriological study of 25 samples of commercial butters the author found that 

 24 per cent contained tubercle bacilli. Fifty-two and nine-tenths per cent of 

 the samples contained acid-fast organisms, the greater number of these, how- 

 ever, being pseudo-acid-resistant. The hygienic aspects of the results of the 

 study are noted. 



The procedures used and the detailed inoculation data are submitted. 



Tuberculosis in the goat, Moussu {Compt. Rend. Acad. Agr. France, S 

 {1917), No. 12, pp. 341-348). — A general discussion with special reference to 



