88 EXPERIMENT STATION RECORD. [Vol.40 



Taking up the sources of infection in streptococcic mastitis, the author finds 

 that " the principal sources of streptococci infection, aside from clinical cases, 

 are apparently normal cows which carry the virus in the udder. These carriers 

 may be grouped as follows: (a) Those that have been infected recently and 

 have not yet developed symptoms; (b) those that have suffered from inflam- 

 mation of the udder and after recovery still harbor streptococci; and (c) those 

 that have had no clinical history of mastitis. There is some evidence to lead 

 one to regard the iatter group as naturally immune. 



"A milker may readily carry streptococci on his hands from an infected 

 to an uninfected cow. 



" The vaginae of 34 of the 64 cows examined contained nonhemolytic strepto- 

 cocci. Of the 34 strains isolated 32 differed in their cultural characters and 

 agglutination affinities from those associated with mastitis. The other two 

 strains may be regarded as of etiological significance. In no instance have 

 hemolytic streptococci been isolated from the vagina." 



Occurrence of coccidioidal granuloma (oidiomycosis) in cattle, L. T. Gii.tner 

 (Jour. Agr. Research [U. S.], U (1918). Xo. 12. pp. - .'. pi*. 2).— In this re- 



port of work by the Bureau of Animal Industry of the U. S. Department of 

 Agriculture, reference is first made to the occurence of coccidioidal granuloma, 

 due to Coecidioidea immitis, in man. This disease does not appear to be widely 

 distributed, nearly all cases reported having been in patients living in the San 

 Joaquin Valley, Cal. 



In the present paper the author records its occurrence in the bovine, it having 

 been encountered in the bronchial and mediastinal lymph glands at an abattoir 

 at San Diego, Cal. The parasite observed in pus from the glands appears to 

 be identical with that found in the lesions of human cases. The lesions ob- 

 served In cattle at the time of slaughter in the abattoir appear to be confined 

 largely to the bronchial and mediastinal lymph glands. " These tissues may 

 be the seat of large areas of suppuration or several smaller purulent foci, ail 

 of which are usually surrounded by considerable granulation tissue and a 

 fibrous capsule. Upon incising an affected gland there may be squeezed out a 

 thick yellowish and tenacious pus which at once suggests actinomycosis. In 

 fact, the similarity of the lesions produced in the lymph glands hy 0. immttit and 

 Actinomyces is so striking that the one affection may be easily mistaken for the 

 other upon gross inspection alone. However, microscopic examination of fresh 

 smears of pus at once establishes a diagnosis; in the one case spheres in various 

 stages of development are present in quite large number, and in the other the 

 colonies of the ray fungus are detected." 



Studies of its cultural characteristics and the results of inoculation of experi- 

 mental animals are reported. It was found that the infection may be trans- 

 mitted experimentally to guinea pigs, rabbits, dogs, cattle, sheep, and swine. 

 Cattle affected with this disease showed no response to subcutaneous allergic 

 tests. Neither specific complement-fixing bodies nor agglutinins were detectable 

 in the serums of affected animals. 



A list of 16 titles to the literature cited is appended. 



Stomach worms of sheep. \Y. L. Chanih.ek < Mirhioan sta.. Quart. BuL, 1 

 (191$). Xo. 1. pp. 19. 20). — Preliminary Investigations in Michigan indicate a 

 high percentage of stomach worm infestation in sheep. All of the animals exam- 

 ined were found to be quite heavily infested with both the twisted wireworm 

 {Haemonchua contortua) and one of the smaller stomach worms [Ottertogia 

 Circumdncta) , while a number of other species were present in the stomach. 



Diseases of swine. (J. MOTTBSTJ (MnlaJics du /'ore. Pari*: .\s*,Un & Hon: 

 1911. pp. 849, pis. 9. flg8. 76; rev. in Jour. A»nr. Vet. Mi 0\ Lt«0< .. 5S (1918). 

 8, pp. 310. 811; Vet. Rev., 2 (1918), Xo. 2. p. 818).— A small handbook. 



