VETERINARY MEDICTNE. 385 



1906 about 4S per cent, or almost half of the herds, were infected, while in 

 1908 about 24 per cent, or less than one-fourth, contained the disease. In 190G 

 about 12 per cent of the animals were infected and in 1908 less than 4 per cent. 

 This indicates tliat the disease is present in a great many herds althougli it 

 has not spread in eacli herd to any great extent. The evidence collected shows 

 that the most connnon mode of herd infection is through the purchase of infected 

 animals. Of 3G3 lierds found infected in IDOS. 2(').3, or over 72 per cent, were 

 infected through purchase." 



The many tests in those counties having the largest numbers are largely due 

 to the influence of post-mortem demonstrations, although in some cases a con- 

 siderable number of tests have been secured by reason of cities passing munic- 

 ipal ordinances requiring the tuberculin test for all cows whose milk is sold. 

 At the present time 14 cities of the State require such tests, althorugh the 

 ordinances are not yet operative in all cases. Over 25 per cent of the jujpulation 

 of the State will be protected by ordinances of this character, if properly 

 enforced. 



The tests which have been made show that the disease is much more prevalent 

 in the southern third of the State, where over 43 per cent of the herds, or over 

 10 per cent of the animals, are infected, while less than IS per cent of the herds, 

 or about 3 per cent of the animals, in the northern two-thirds of the State have 

 the disease. 



" Bovine tuberculosis has just begun to get a foothold in the new northern 

 sections and steps must be taken at once if it is to be kept out. xi law requiring 

 a clean bill of health to go with each sale is badly needed as well as a law requir- 

 ing the pasteurization of factory by-products. ... By testing the herd and 

 removing the infected animals at once and then buying only tested animals 

 the herds can be kept free from the disease." 



The control of bovine tuberculosis, J. G. Rutherford {Ottawa: Govt., 

 J DOS. i)p. 11). — A paper read at the International Congress on Tuberculosis, held 

 at AYashington, D. C. in 1908. 



Bovine tuberculosis and its eradication, W. B. De Vine (Jour. Roy. Inst. 

 Pub. Health, 17 (tOO'i). Xo. 5, pp. .^SS-.^<J3).—A paper read at the Buxton con- 

 gress in 190S. 



Contagious abortion in cattle (Agr. Gaz. X. S. Wales, 20 (1909), Xo. J/, pp. 

 298-300). — This is a brief account of contagious abortion, which is said to have 

 been observed in Australia for some years and is now rapidly spreading through- 

 out the coastal dairying districts of New South Wales. 



Contagious abortion, S. Dodd (Queensland Agr. Jour., 22 (1909), Xo. 6, pp. 

 311-319). — This disease is said to exist in various parts of Queensland, although 

 at present not to any al;irming extent. 



Test of Roberts's so-called anti-abortion serum ( U. S. Dept. Agr., Office 

 Sec, Cire. 29, p. 1). — Analysis of this preparation by thi> Bureau of Animal In- 

 dustry shows that it is not a serum and contains no serum. The sample con- 

 tained approximately 98 per cent of water, the remainder consisting of phenols 

 (carbolic acid), oil of cloves, and a very small proportion of what appeared to 

 be some form of vegetable matter. 



Sheep scab, E. S. Good (Kentucky Sta. Bui. IJfS, pp. 219-246, figs. 8).— The 

 number of scabby sheep going into the markets from Kentucky is said to be 

 constantly increasing, and to such an extent as to cause this Department to 

 consider the necessity of quai-antining the State. In this bulletin the author 

 presents information on the cause, symptoms, treatment, etc., of the disease. 



From experiments made at the station as to the longevity of the parasites off 

 the body of tlie host it was determined that when kept at the room temperature 



