1180 EXPERIMENT STATION RECORD. 



forms uiitler wliich this blood parasite (K-curs are descrihed, and notes are given on 

 the interrehitionships of the (hfferent stages of development. Exi)erinients were 

 made in infecting flies with IT. surcojihag.v which is <l<'scriljed as a new speiio. In 

 one series of experiments 8 ont f)f 100 flies Ix'camc infectf'd when fed on Idocid con- 

 taining this parasite. 



The polycephalic bladder -worms, especially Coenurus cerebralis and C. 

 serialis, ¥. KrxsKMULi.EK (Zoo/. Jahrb., Aid. Amit. v. (hHocj. TliiiT,-, IS {1904), ^o- 4, 

 pp. 507-5-lS, pJ>i. 4, f [/■'<■ '^)- — Detailed notes are given on the anatomy and <levelop- 

 mental stage.g of these parasites, and the literature of the subject is critically discussed 

 in connection with a bibliography. 



Intestinal parasites in bogs, K. W. Stoioer ( loirn Ayr., 4 {U"i4) , Xo. 4, pp- 

 1G7-109). — Brief notes are given on BulavtkUum col'i, J^j-lininrlujurliux (jii/n.^, ,l.scara 

 stulla, Trichocephalus crenatu», and trichina. 



Sarcosporidia and tbeir enzyms, H. Rievel and M. Behkens ( C'euiW. Bakt. v.. 

 Par., 1. Alt., OrUj., 35 {1903), Xo. 3, ]>j>. 341-352, Jiy.^. 4).— Large numbers of Sarco- 

 sporidia Avere fcaind by the authors in tlie musculature of a llama. The morphology 

 of these organisms is discussed in detail. A number of inoculation experiments 

 were made with rabbits. It is believed that the organism is different from any 

 species of Sarcosporidia hitherto described. It develops a very virulent poisonous 

 princijjle which paralyzes the central nervous system, and which appears to resemble 

 an enzym rather than a toxin. It was found possible to immunize rab]>its against 

 this organism. 



Swine fever, J. D. Stewart {Jour. Dept. Agr. West AiMralia, 8 {1903), Xo. 5, pp. 

 4l8-4.33,figs. 8). — Notes on the nature, cause, symptoms, and treatment of hog cholera. 

 The author outlines briefly the pathological lesions found in cases of this disease and 

 makes general recommendations regarding the disinfection of premises after out- 

 breaks of the disease and sanitary measures to be adopted in preventing further 

 spread of hog cholera. 



The production of a serum for use in the prevention of SAvine plague and 

 hog cholera, M. Prettner ( Cf//^W. Bait. u. Pur., 1. Aht., Grig., 36 {1904 ),yo. 1, pP- 

 94-103 ). — In these experiments dogs were used as the source of serum and this serumi 

 was tested on white mice. The results of the experiments are set forth in a tabular 

 form. It was found during the author's study of this problem that the serum of dogs 

 immunized toward swine plague possessed protective properties against the bacilli of 

 swine plague and hog cholera. The serum of dogs immunized against hog cholera 

 was likewise active against both diseases. The highest protective property, how- 

 ever, was ol)tained when the dogs were treated with both species of bacilli. 



Diseases which resemble hog cholera, O. Malm {Norsk Vet. Tidsskr., 16 {1904), 

 No. 2, pp. 25-38). — The symptoms and i)athological lesions of hog cholera, swine 

 plague, and swine erysipelas are described for the purpose of calling attention to the 

 various points of similarity of these diseases and to the means of differentiating 

 them. Notes are also given on the prevalence of these diseases in Norway and on 

 the results obtained by different methods which have been r.dopted for checking the 

 diseases. 



Rachitis in pigs, E. Thierry {.Jour. Agr. Prat., n. ser., 7 {1904), -Vo. 9, p. 291). — 

 The cause of this trouble in young pigs is said to be found in an improper dietary 

 containing but little phosphate of lime or other lime salts. In order to prevent the 

 development of a weakness of the bones in young pigs it is recommended that ground 

 bone be added to the usual ration. 



The danger of introducing glanders from foreign countries, Arxdt (Fortschr. 

 Vet. Hijg., 2 {1904), No. 1, pp. 1-5). — Statistics are presented showing the relative 

 extent of importation of horses from foreign countries into Germany. The bearing 

 of these statistics upon the prevalence of glanders is discussed in a critical manner. 

 In the author's opinion a general scheme for controlling this disease must include 

 supervision of the books of horse dealers, quarantine upon international boundary 



