VETERINARY MEDICINE. 187 



foot-and-mouth disease, held at Birkenhead on February 26, 1914, between repre- 

 sentatives of tlie Board of Agriculture and Fisheries and of the Department of 

 Agriculture and Technical Instruction for Ireland, in which evidence relating to 

 the introduction and occurrence of the disease in England is presented. 



The identity of Trypanosoma rhodesiense with, the trypanosom.e of the 

 same appearance found in game, W. Yorke and B. Blacklock {Brit. Med. 

 Jour., No. 2788 {19H), pp. 12SJt-1236) .—'' In favor then of game being the 

 reservoir of human trji^anosomiasis in south central Africa we have the follow- 

 ing facts : Human beings and game are known to be infected with trypanosomes 

 identical as regards morphology, pathogenicity in laboratory animals, and their 

 development in Glossina uiorsitans. The human trypanosome can be successfully 

 inoculated into game. The peculiar sporadic occurrence of the disease in human 

 beings suggests that they were infected from a widely spread reservoir of the 

 infection (the game) rather than from one another. 



" In conclusion, we submit that the hypothesis that man enjoys marked natu- 

 ral immunity and is in consequence to a great extent resistant to infection with 

 this parasite affords a satisfactory explanation of the distribution of the disease, 

 of its comparative rarity, and of the fact that Taute's attempt to infect himself 

 failed." 



Concerning the identification of trypanosomes occurring in Russia, L. 

 Yakimoff (Compt. Rend. Sac. Biol. [Paris], 78 {1915), No. 10, pp. 303-306).— 

 The investigations of the author indicate that the dourine trypanosome {Tnj- 

 panosoma equiperdum) of Russian origin and that of Algeria are identical; 

 that the trypanosome of the ass and of the camel in Bokhara are identical ; 

 that the trypanosome of dourine in Russia is not identical with that occurring 

 in the camel and ass in Bokhara or with T. hrucei; and that the trypanosome 

 of the ass in Bokhara is not identical with T. brucei. 



Delayed reactions following injection of tuberculin, J. G. Wills and C. 

 LiNCH {Rpt. U. S. Live Stoek Sanit. Assoc, 17 {1913), pp. 78-96, figs. 3).— 

 •' Our experience in a great number of these so-called slight reactions has shown 

 the necessity of great care being exercised in relation to condemning cattle not 

 showing a pronounced temperature rise. It is not unusual to find animals that 

 show a slight elevation of temperature exhibit on slaughter pronounced lesions 

 of tuberculosis. Hutyra and Marek state that in cattle that have had previous 

 injections of tuberculin the reaction passes over sooner than normally and in 

 advanced disease it may set in very late. In our observations we have failed 

 to find this to be the rule, but have found many delayed reactions and few early 

 reactions even in cases where temperatures were taken for 48 hours, beginning 

 2 hours after tuberculin was injected. Our experiences indicate that the pre- 

 vious injection of tuberculin has a tendency to reduce the extent of temperature 

 rise in a tuberculous animal, and this observation would seem to support the 

 theory of once a reactor always a reactor. Under such circumstances a history 

 of the herd is of value to the examiner in determining what action will be taken, 

 especially with individuals which do not show definite reactions. In badly dis- 

 ea.sed herds it is unquestionably necessary to consider a slight rise in tempera- 

 ture with more suspicion than in cases where few reactors are found." 



Histoiy of tuberculosis in the college herd, H. H. Havner {Pennsylvania 

 St a. Rpt. 1912, pp. 177-190, pi. i).— This account is largely a reprint of the 

 bulletin previously noted (E. S. R., 29, p. 885), with some additional data. 



The life history of Nematodirus filicollis, a nematode parasite of the 

 sheep's intestine, C. L. Boulenger {Parasitology, 8 {1915), No. 2, pp. 133-155, 

 pis. 2, figs. 5). — A report of studies of this parasite commenced in August, 

 1913, at Wye, in Kent, and continued at the University of Birmingham. 

 18833°— No. 2—16 7 



