286 EXPERIMENT STATION RECOED. [Vol. 38 



adults in India. It is indicated that tliis material will be discussed in a sub- 

 sequent publication. 



Bovine tuberculosis, J. F. Devine {Chicago: Amcr. Vet. Pub. Co., 1917, pp. 

 120, figs. 7). — This volume discusses the various phases of the disease. It con- 

 tains an introductory article by E. Z. Russell, a discussion of the intradermal 

 tuberculin test by D. F. Luckey, and an article on the State accredited herd 

 by O. E. Dyson. 



Advantag'es of testing pure-bred herds, S. H. Wakd (Jour. Amer. Yet. Med. 

 Assoc, 52 (1917), No. 2, pp. 156-160).— The author points out and briefly dis- 

 cusses the advantages of testing pure-bred herds. 



The sterility of cows, its causes and treatment, J. Albbechtsen, trans, by 

 H. Wehkbein (Chicago: Alexander Eger, 1917, pp. 98 figs. 27). — An English 

 translation of the worlv previously noted (E. S. R., 24, p. 389). See also a 

 recent note (E. S. R., 37, p. 379). 



Facts disclosed in a study of the presence of Bacillus abortus in milk by 

 means of the agglutination test, L. H. Cooledge (Jour. Med. Research, 37 

 (1917), No. 2, pp. 207-214, figs. 2).— The author here reports upon investiga- 

 tions at the Michigan Agricultural College conducted in continuation of those 

 previously noted (E. S. R., 36, pp. 277, 383, 480). 



Examinations made of the milk from 112 cows on 7 farms resulted in 

 the faiding of that from 24 cows on 5 farms to be infected with B. abortus. 

 The percentage of infected udders in the 5 herds varied from 15 to 100 and 

 was 27 per cent of the total. " The infection was present in a high percentage 

 of the animals or was entirely absent, indicating the very infectious nature of 

 the disease. Once the infection is established in the udder the milk becomes a 

 carrier of B. abortus and a possible source of the infection for years. In no 

 instance has the udder infection died out after being firmly established during 

 the three years that observations have been made. The rear quarters are the 

 first to show B. abortus infection, indicating that the genital discharges and 

 switching of the tail are its source. The infection may then be carried to the 

 front quarters upon the hands. The age of the cow apparently has no con- 

 nection with the first appearance of the infection." 



A list of 11 references to the literature is included. 



Formalin treatment in mastitis, J. K. Bosshart (Jour. Amer. Vet. Med. 

 Assoc, 51 (1917), No. 6, p. 831).— The author reports having obtained good re- 

 sults from the use of formalin in the treatment of mastitis in cattle as recom- 

 mended by Frost (E. S. R., 37, p. 277). Half-ounce doses have, however, been 

 found too toxic for some individuals, and he recommends as a safer dosage 

 the use of 1 teaspocnful or about 0.2 oz. in 0.5 pint of raw linseed oil twice or 

 three times daily, alternated with 1 oz. of turpentine in oil. 



The cattle tick in Australia, J. D. Stewart et al. (Advisory Council Sci. 

 and Indus., Aust., Bui. 1 (1917), pp. 30, pis. 4). — This is a report of a special 

 committee appointed to review the status of the tick pest in Australia, present 

 and future, and to make recommendations as to future research and immediate 

 remedial or preventive measures, whether by legislation or otherwise. 



The committee reports that there is no reason to believe that the cattle tick 

 will not establish itself in congenial portions of the coastal areas in any part 

 of Australia and Tasmania, and that unless its spread is checked it will be 

 only a matter of time before all the States of the Commonwealth will become 

 infested. At the present time the infestation is chiefly in Queensland and the 

 Northern Territory, and to a less extent in Western Australia and New South 

 Wales. As the matter is of national importance and vital to the prosperity of 

 the Commonwealth, it is recommended that the Federal Government undertake 

 the work of eradicating the pest. It is suggested that a start be made in the 



