84 EXPERIMENT STATION RECOED. 



Report of the committee on standard methods [American Public Health 

 Association] for the diagnosis of rabies, Anna W. Williams {Amer. Jour. 

 Pub. Hyg., 20 {1910), No. 3, pp. 70J,, 705).— The following points are to be 

 studied by the research workers for the following year : " Comparison between 

 virulence of saliva and brain and of time the Negri bodies appear in brain ; 

 public attention directed to importance of keeping biting animals under obser- 

 vation, only killing in case of need of immediate protection against an other- 

 wise imcontrolled animal ; length of time such suspected animals should be kept ; 

 advice to give users of milk from infected cow — here should be determined what 

 percentage of infected cows have infected milk, and degree of infection of such 

 milk ; . . . simplify method of diagnosis ; . . . localization of well-developed 

 bodies — for instance, in a certain percentage of rabid cases well-developed bodies 

 are found in the cerebellum and not in Ammon's horn ; number of smears 

 studied in doubtful cases before deciding that the case is not rabies; . . . rela- 

 tive value of rabbits and guinea pigs for the inoculation test." 



The histologic diagnosis of rabies, G. Volpius {Ztschr. Hyg. u. Irifek- 

 tionskranlc, 65 {1910), No. 1, pp. 113-120). — The material examined consisted 

 chiefly of stray dogs and 1 pig. Negri bodies were present in all cases, whether 

 the subdural inoculation furnished positive or negative results. The applica- 

 bility of the direct smear, teasing, and sectioning methods, and the various 

 staining methods are discussed with relation to determining as to the protozoan 

 nature of the exciter of rabies. 



Bacteriological examination of the sputum of bovines affected with lung 

 tuberculosis, Hieronymi {Arch. TRss. n. Prakt. Ticrhcilk., 36 {1910), Sup., pp. 

 lOS-152). — As a result of the clinical examination and of that of the sputum of 

 suspected and tuberculous cows the author states that where the clinical diag- 

 nosis is negative the absence of the tubercle bacilli in the sputum is very valu- 

 able in substantiating the absence of tuberculosis. In 62 per cent of all cases 

 tubercle bacilli were identified microscopically by suitable homogenizing and 

 staining methods. Enriching and cultivation methods, which have been so suc- 

 cessfully applied in human medicine, were not very efficacious in this work. 

 The most sensitive means for examining tuberculosis-suspected sputum is the 

 animal test. 



[Sputum sampler for animals], H. Tallgeen {Berlin. Tierdrztl. Wchnschr., 

 26 {1910), No. 29, p. .'577, fig. 1). — A description of Graae and Tallgren's appa- 

 ratus for collecting sputum from tuberculous or suspected animals. The instru- 

 ment is placed in the esopliagns and fastened with a string to the horns of the 

 animal, and the animal, by irritation, made to cough. 



Treatment of tuberculosis by a new^ method, E. P. Ward {Ztschr. TuherkUr 

 lose, 16 {1910), No. 2, pp. 151-160, figs. 2). — This consists of repeated injections 

 of nuclein compounds. 



The relation of leukemia in bovines to tuberculosis, E. Neumann {Berlin. 

 Tierarztl. Wchnschr., 26 {1910), No. 29, pp. 579-581).— The author states that 

 leukemia and tuberculosis do not occur in the same individual, and that leuke- 

 mia in animals is a strong expression of a progressively inherited immunity. 



The effects of a restricted diet and of various diets upon the resistance of 

 animals to certain poisons, R. Hunt {Pub. Health and Mar. Hosp. ScriK U. S., 

 Hyg. Lab. Bui. 69, pp. 93). — "A restricted diet markedly increases the resistance 

 of certain animals to acetonitrile. Guinea pigs upon a limited diet excrete a 

 smaller percentage of the cyanogen of acetonitrile as sulphocyanate than do 

 those upon an unrestricted diet. This result is interpreted as showing that 

 certain specific processes of metabolism are retarded in partial inanition. 



" Diet has a marked effect upon the resistance of animals to certain poisons; 

 the resistance of some animals may be increased fortyfold by changes in diet. 



