596 EXPERIMENT STATION RECORD. 



neglected or carried out in a halfhearted manner and are therefore 

 ineffectual. 



Communicable diseases, aside from the primary cases (disease germs), 

 are noted as due to the introduction of diseased stock, exposure of 

 animals to diseased stock of neighbors, to infected drinking water, and 

 such miscellaneous agencies as man, dogs, birds, insects, etc. Proper 

 isolation, the use of water from deep wells, runs, or pastures of suffi- 

 cient size, and disinfection of pens, are insisted upon. 



Anthrax is not thought to be endemic iu this country. Inoculation 

 against it is not regarded with favor, since there seems to be danger of 

 continuing the disease by this means. 



Texas fever may be controlled by washes of pyrethrum, kerosene 

 emulsion, and kerosene emulsion iu connection with the liberal use of 

 a currycomb and hand picking. Dips are not thought successful. The 

 presence or absence of ticks in the region is not thought a reliable test 

 for the presence or absence of the disease. For noninfectious diseases 

 the method is the obvious one of introducing no stock from infected 

 localities. 



Tuberculin investigations in Sweden, J. Svensson (Ber. Andra 

 Nord. Landtbr. Kongr., Stockholm, 1897, J, pp. 229-210).— The first sys- 

 tematic tests in Sweden for tuberculosis by the injection of tuberculin 

 were made in April, 1895. During the following 2 years and 2 months 

 35,992 cattle, distributed on 1,117 farms, have been inoculated. Of 

 this number 52.0 per cent did not give any reaction, 5.2 per cent 

 were doubtful, and 42.2 per cent gave a decided reaction. The animals 

 examined were largely in herds on large estates. There were many 

 small herds where no tuberculous animals, or only 1 or 2 per cent, was 

 found. The author believes that the percentage of tuberculous cattle 

 for the whole country is below 20. — f. w. woll. 



Bacteriological work, F. D. Chester (Delaware Sta. Rpt. 1897, pp. 38-42). — The 

 preparation of anthrax vaccines is briefly described, and bacteriological examina- 

 tions of 12 samples to determine anthrax reported. 



A study of National and of State legislation on anthrax, A. T. Neale ( Dela- 

 ware Sta. Rpt. 1807, pp. 8-19). — Reprint of Bulletin 37 of the station (E. S. R., 10, 

 p. 396). 



On the influence of potable water of varying chemical composition upon the 

 virulence of splenic fever bacilli, P. Drosdowski ( Vrach, 1898, No 3). 



Hog cholera, G. A. Waterman (Michigan Sta. Bui. 157, pp. 323-328).— A general 

 discussion of the subject, including the cause, symptoms, treatment, disposal of 

 the carcasses, aud methods of cleaning the pens where iufected animals have died. 

 The favorable results attending the injection of serum from immune animals are 

 mentioned. 



Glanders of Droes, D. Hutcheon (Agr. Jour. Cape (lood Hope, 13 (1898), No. 8, 

 pp. 453-4G0). — A general article, giving symptoms ami treatment. Citations from the 

 "Animal disease act" are given. 



Tuberculosis in cattle and its control, J. Law {New York Cornell Sta. Bui. 150, 

 pp. 30, pis. 2, figs. 3). — A general discussion, summarizing the present knowledge of 

 the subject. The author's experience in eradicating tuberculosis from two herds with- 



