584 EXPERIMENT STATION RECORD. 



disease, but lire never sufflcicntly abimdaut iv form a feature of cholera 

 infection." 



Although intracellular bodies are increased as a rule quite markedly by an 

 infection, this is not invariably the case. They are in some way connected, 

 according to the author, or associated at least with conditions which give rise to 

 malnutrition and anemia, and when a marked increase in number takes place, 

 there is a corresponding decrease in the number of red cells. 



The blood of three suckling pigs, four or fire weeks old and farrowed by a 

 mother which had been inmiunized for antiserum production, showed anemia, 

 especially the fattest of the three, although all of the animals were apparently 

 healthy in appearance. In all .three the intracorpuscular bodies were unusually 

 abundant. The bodies in pigs' blood are regarded as identical with the Jolly 

 bodies of other workers and bear a close relation to the figures of Theiler's 

 anaplasma. the reputed cause of gall sickness of South African cattle. Attempts 

 to transfer these bodies to the guinea pig were unsuccessful. 



In a small percentage of cases of acute hog cholera blood films treated with 

 Giemsa or Wright stain showed the presence of ring-shaped forms. These had 

 the appearance of being plastered over the surface of the red cells, some pro- 

 jecting beyond the margins, and even lying intercellular. " The rings are colored 

 by the nuclear staining component of the stain various shades of purple to red. 

 As already said, these ring forms are apparently absent or so rare as to escape 

 observation in most samples of cholera blood, but in some cases they are ex- 

 ceedingly numerous. They appear in all preparations made from the same blood 

 sample and are absent from others similarly treated for comparison, hence are 

 attributable to the condition of the blood and not to defect in staining." 

 Although these forms have never been noted in the blood of noninfected animals, 

 they have not been sufficiently studied to allow of the suggestion that they are 

 characteristic of cholera. They bear no resemblance to bacteria in either stain- 

 ing, properties, or shape. According to the author's i>resent opinion they are 

 foreign organisms of some kind, if not bacterial probably protozoal. 



" Hog-cholera infection gives rise at an early stage to a pronounced leucopenia, 

 M'ith the appearance of numerous atypical mononuclear or transitional leuco- 

 cytes. "When inflammatory complications occur a polymorph leucocytosis ap- 

 pears. The destruction of red corpuscles is not a prominent feature of the 

 disease." 



[Hog cholera in New Jersey], F. C. Minkler (New Jersey Stas. Circ. 40 

 (Wllf), pp. 21-29; Rpt. 1913, pp. 199-207) .—The author describes the nature 

 of hog cholera and preventive and remedial measures. A number of outbreaks 

 were encountered in the State during 1913. 



Atlas of equine anatomy, R. Schmaltz (Atlas de Anatomic des Pferdes. 

 Berlin: Richard Schoetz, 1914, pt. 3, pp. 20, pis. i^).— This third pait of the 

 work previously noted (E. S. R., 24. p. 485) deals with the position of the 

 viscera as based upon studies of frozen subjects. Colored illustrations of twelve 

 cross sections made of the trunk show the organs in situ. 



The common colics of the horse, their causes, symptoms, diagnosis, and 

 treatment, H. C. Reeks (Chicago: Alexander Eger, 1914, 3. ed., pp. XVI+369, 

 ■figs. 32). — An enlarged edition of the work previously noted (E. S. R., 14, 

 p. 922). 



Dourine in Nebraska, L. C. Kigin (Amer. Yet. Rev., 46 (1915), No. 5, pp. 

 563, 564). — This article records the discovery of the occurrence of dourine in 

 Nebraska during the fall of 1914. It is thought to have entered the State in a 

 shipment of horses from Wyoming. 



[Poultry diseases], H. R. Lewis and A. L. Clark (New Jersey Stas. Rpt. 

 1913. pp. 276-279). — The authors report upon an outbreak of vent gleet among 



