200 EXPERIMENT STATION RECORD. 



The Bacteriological Institute at Landsberg and the preparation and test- 

 ing of sera, Schubert {Deut. Tierarztl. Wchnschr., 12 (1904), No. 18, pp. 169-172). — 

 A detailed account is given of the sera prepared in this institute for use in the treat- 

 ment of swine erysipelas, swine plague, hog cholera, fowl cholera, ami septic pneu- 

 monia of calves. 



Combating bovine tuberculosis, <i. Mazzini (Gior. R. Soc. ed Accad. Vet. Ital.', 

 53 (1904), Ko. 23, pp. 540-544)- — A short outline is presented of various methods 

 which have been suggested for controlling tuberculosis in cattle, including that of 

 von Behring. Attention is called to the danger from consuming the milk and meat 

 of tuberculous animals, and to the necessity of more severe methods in controlling 

 the disease in Italy. 



The effect of treatment with hetol upon inoculation tuberculosis of guinea 

 pigs and rabbits, A. Hoffmann (Arrli. Wiss. u. Prakt. Tierh., SO (1904), No. 1-2, 

 pp. 162-187). — The literature relating to the treatment of tuberculosis by the use of 

 hetol is critically reviewed. The chemical nature of hetol is discussed. In healthy 

 rabbits and guinea pigs hetol in doses of 1 cc. of a 1 per cent solution produced slight 

 elevation of temperature. 



It was found that animals inoculated with tuberculosis and treated with hetol 

 withstood infection considerably longer than the control animals. Striking differ- 

 ences were observed in the histological characters of the tissues of treated and 

 untreated animals. In treated animals the tubercles were small, sharply delimited, 

 and surrounded by leucocytes. Furthermore, treated animals gained in weight 

 while untreated ones lost. Hetol may without any injurious effect be given to 

 rabbits and guinea pigs hypodermically or intravenously in £ per cent to 1 per cent 

 solutions in doses of 1 cc-2 cc. It is more effective when given intravenously than 

 by the hypodermic method. 



The author considers hetol a very satisfactory remedy and believes that it mate- 

 rially aids the animal in resisting the progress of tuberculosis. 



Erroneous diagnosis of tuberculosis in cows, Lienaux (Ann. Mid. Vet., 53 

 (1904), No. 6, pp. 389-848). — A milch cow showed loss of appetite and weight, with 

 body temperature of 40° C. The case was diagnosed on the basis of physical symp- 

 toms as tuberculosis. On post-mortem examination the lungs were found to be free 

 from tubercles. The case proved to be one of infectious lymphadenitis. Detailed 

 notes are given on the pathological lesions. 



The tuberculin reaction, Feistmantel' (Centbl. Bali. u. Par., 1. Abt., Orig.,36 

 (1904), No. 3, pp. 40G-415). — The toxic effect of large doses of glycerin has little or 

 no influence in the production of a reaction to tuberculin in guinea pi<;s. Salt solu- 

 tions are similarly without effect. It was found that from cultures of Streptothrix 

 farcinica a toxin could be obtained which had the same action as tuberculin. The 

 tuberculin reaction is therefore considered of a generic rather than specific character. 

 The tubercle bacillus and Streptothrix farcinica are believed to be closely related. 



Rhodesian tick fever, A. Theilek (Transvaal Agr. Jour., 2 (1904), No. 7, pp. 

 421-438, pi. 1). — The nature, symptoms, etiology, and pathology of this disease are 

 described in considerable detail. The disease can not be transmitted by a single 

 inoculation of virulent blood. The developmental stages of the blood parasite are 

 described and notes are given on the biology and habits of Rhipicephalus appendicu- 

 /aliiK, by means of which the disease is transmitted. The disease is carried only by 

 the nymphal ami adult stages of this tick. Treatment of Rhodesian tick fever is of 

 no avail, but immunity may be produced by inoculation. 



Rhodesian redwater, R. Koch (Arch. Wiss. u. Prakt. Tierh., 30 (1904), No. 3, 

 pp. 2S1-319). — This is essentially a German translation of the author's first three 

 reports on this subject as already noted from English publications (E. S. R., 15, pp. 

 301, 1014, 1126). 



