984 EXPEKIMENT STATION RECOED. 



idea that rabies may be a disease of the imagination. Statistics are pre- 

 sented regarding the frequency of the occurrence of rabies, and detailed clin- 

 ical notes are given on two cases of the disease which occurred in horses at 

 the experiment station of the Bureau of Animal Industry. 



The chief reason why dogs are most often concerned in the transmission of 

 rabies is that these animals are of a social nature and frequently get into 

 fights in which a rabid dog has opportunity for transmitting rabies to other 

 dogs. 



It is impossible to control rabies by Federal legislation, but this matter 

 should receive moi-e earnest attention from State legislatures and mimici- 

 palities. Laws for the control of rabies should require licensing of dogs and 

 muzzling of dogs on public highways and should hold dog owners responsible 

 for all damage caused by their dogs. 



Rabies and its increasing' prevalence, G. H. Hart {U. S. Dept. Agr., Bur. 

 Ani)it. Indus. (J ire. 120, pp. 26. fig. 1). — An account is given of the history and 

 prevalence of rabies in the District of Columbia and in various States through- 

 out the country. Attention is called to the importance of the disease and to 

 a number of popular fallacies concerning it. The author describes the symp- 

 toms of rabies and gives notes on the period of incubation, the disposal of 

 rabid dogs, post-mortem examination of rabid dogs, methods of preparing the 

 tissues to be forwarded to the laboratory, diagnosis of rabies by laboratory 

 methods, the Pasteur and Hogyes methods of preventing the disease, and 

 general recommendations for the eradication of rabies in the United States. 

 It is urged that rabies could be entirely eradicated if all dogs were muzzled 

 for a few years. 



Normal brain substance and rabies vaccine, C. P'eemi {Centhl. Balct. [e<c.], 

 1. AM. Orig., JfJ/ {1901), No. 5, pp. //75-.'/7'S). — When used in a fresh condition 

 normal nerve substance exercised as great an immunizing power against rabies 

 as did rabies virus obtained from the brain substance of diseased animals. 

 During desiccation, however, the normal nerve substance became attenuated 

 more rapidly than did rabies virus. 



Comparative histolog'ical and bacteriological investigations on the rela- 

 tionship of human and bovine tuberculosis, A. Eastwood {Rog. Com. Tiihcr- 

 cuIo.'<is. Hecond Intcriin Rpt., .', (1901), pi. 2, App., pp. XXXII+292, charts 8). — 

 A detailed report is given on the histological and bacteriological results obtained 

 in a comparison of the virulence and pathology of human and bovine tubercle 

 bacilli in cattle, rabbits, anthropoid apes, monkeys, goats, swine, dogs, cats, 

 and rats. 



In all of these animals the pathological processes produced experimentally 

 by inoculation with bovine and human tubercle bacilli are essentially alike. 

 Bovine tubercle bacilli in adequate doses produce an acute type of tuberculosis 

 in cattle. Human tubercle bacilli tested under similar conditions produce 

 lesions identical with those of bovine tubercle bacilli in some cases, while other 

 cultui-es of human bacilli produce only a mild type of the disease. It appears, 

 therefore, that some viruses of human origin are relatively innocuous to cattle. 



Bovine tubercle bacilli even in small doses produce a typical pathology of tuber- 

 culosis in anthropoid apes and man. Human bacilli of low Airuleuce for cattle 

 produce typical lesions in anthropoid apes, but the form of the disease is not 

 more severe than from similar infection with bovine tubercle bacilli. In fact 

 human tubercle bacilli produce no pathological processes which are more severe 

 or in any way essentially different from those caused by bovine bacilli. 



The author states that in his investigations not the slightest indication has 

 been obtained of any peculiarity of bovine virus which might suggest its being 

 relatively innocuous to the human body, With regard to the cultures of bacilli 



