VETERINARY MEDICINE. 781 



In reg-ard to the mastitis caused by streptococci, W. Meyer (Arch. Wiss. u. 

 Prakt. Tierheilk., 36 (1010), No. 6, pp. 583-633).— The author studied a number 

 of naturally infected and artificially infected cows, in which the patho-anatomi- 

 cal changes were noted in 4 naturally and 2 artificially infected animals. A 

 study was also made of the morphological and biological characteristics of the 

 various strains of streptococci isolated. 



The work shows that chronic streptococcic mastitis begins as an acute condi- 

 tion, which is often of brief duration. It manifests itself patho-anatomically 

 as a purulent catarrh of the ducts and the alveoli of the mammary gland, and 

 shows in addition a marked increase in the connective tissue of the gland struc- 

 ture. The inflammation is not produced by the streptococci themselves, but by 

 the metabolic products of these organisms. The milk obtained from such 

 animals showed a diminished fat and acid content, an increased catalytic 

 action, and a loss of the reducing (reductase) action. The specific gravity of 

 the milk from chronic cases remains within normal limits. Therapeutically 

 considered, the only effective measure lies in giving an injection of an anti- 

 septic solution at the very earliest period of the disease; later injections do 

 not prevent the destruction of the quarter involved. The streptococci when 

 growing in the gland were found to produce short and interwoven bands, 

 while those multiplying in bouillon formed long chains. 



Foot-and-mouth disease, J. Paechtner {Ztschr. Spiritusindus., 34 {1911), 

 No. 2, pp. 13. Iff). — A general discussion in regard to the epidemiology, cause, 

 and prevention of the disease. 



Sporotrichosis in man and in the horse, R. L. Sutton (Boston Med. and 

 Surg. Jour., 16Jf (1911), No. 6, pp. 179-181, figs. 4; abs. in Jour. Amer. Med. 

 Assoc, 56 (1911), No. 8, p. 617). — The author reports a case of sporotrichosis 

 in man, confined to the wrist, which followed an injury that took place while 

 the patient was repairing the manger of a horse suffering from sporotrichosis 

 of the neck. 



[Investigation of the stomach worm and hookworm disease in young 

 cattle and lambs], E. Barnett (South Carolina Sta. Rpt. 1910, pp. 71, 72). — A 

 brief report of observations made in continuation of studies previously noted 

 (B. S. R., 22, p. 681). 



Time relationships of the wood tick in the transmission of Rocky Moun- 

 tain spotted fever, J. J. Moore (Jour. Infect. Diseases, 8 (1911), No. 3. pp. 

 339-3.'f7). — "The minimum duration of feeding necessary for a tick to infect 

 a guinea pig was found to be 1 hour and 45 minutes. The average time neces- 

 sary seems to be about 10 hours, while 20 hours were almost constantly in- 

 fective. The duration of feeding necessary to infect a tick is approximately 25 

 hours, while the minimum incubation period in the tick was not definitely 

 determined. With ticks obtained from nature it is possible that the duration 

 of feeding necessary to infect the tick and the incubation period in the tick 

 will be found to be much less than is indicated here." 



Complement deviation in Rocky Mountain spotted fever, B. F. Davis and 

 W. F. Petersen (Jour. Infect. Diseases, 8 (1911), No. 3, pp. 330-338 ).—" Posi- 

 tive deviation of complement, using spotted fever antigen and antibody, has 

 been obtained in but one instance, and the results of experiments undertaken 

 to confirm this positive finding have been negative." 



Curative tests of Ehrlich-Hata " 606 " in spirochetosis of geese, bovine 

 piroplasmosis, and rinderpest, E. Dschunkowsky (Berlin. Tierdrztl. 

 WchnscJir., 27 (1911), No. 1, pp. 2-9; ahs. in Jour. Cotnpar. Path, and Ther., 

 2Jf (1911), No. 1, i)p. 91-9 Ji). — The author and a collaborator have previously 

 shown (E. S. R., 24, p. 280) that atoxyl has a specific action in spirochetosis 

 of geese. In the experiments here reported it was found that as in other spiro- 



