286 EXPERIMENT STATION RECORD. [Vol.41 



due to excessive infection, ■vvliicli might liave accounted for the disappearance 

 of the worms. Pig C was liilled 31 days after infection, and again no worms 

 were found in tlie intestine." 



On the development of Ascaris lumbricoides, S. Yoshida {Jour. Parasifol- 

 ogy, 5 {1919), JN'o. S, pp. 106-115, pi. 1). — This is a report of investigations con- 

 ducted by the author at Osalia, Japan. Experiments are reported and dis- 

 cussed under the headings of development of uninjured fertilized eggs, non- 

 infectiveness of unripe eggs, hatching place of eggs, migration of larv.'e in 

 the body of host, tlie fate of the larvse in the body of the feeding animal, ex- 

 periments on other mammals, experiments on immunity, the migrating power 

 of the larvae, human experiments with Ascaris larvfe, and morphological 

 changes in the larvse during development. 



Parasitic mange (Vet. Rev., 3 {1919), No. 2, pp. 185-194) .—This is si re- 

 view of the more recent literature relating to the subject, in which 17 titles 

 are dealt Mith. 



Practical methods of prophylaxis ag'ainst worm infestations, B. H. Ran- 

 som {Jovr. Aiiier. Vet. Med. Aftsoc. 55 {1919), No. 1, pp. 46-62). 



Practical methods of treatment for worm infestation, M. C. Hall (Jour. 

 Amcr. Vet. Med. Assoc, 55 {1919), No. 1, pp. 24-45. pj. i).— This paper deals 

 briefly with a dozen of the more important parasites affecting cattle, horses, 

 sheep, swine, dogs, cats, and poultry. 



Tick eradication plans for 1919, J. R. Mohler {-Jour. Amer. Vet. Med. 

 Assoc., 54 {1919), No. 7, pp. 745-748). 



Dips and dipping, I, H. H. Green (So. African Jour. Indus., 2 (1919), No. 5, 

 pp. 4IO-4I8). — A discussion of the work in South Africa of dipping against 

 tick-transmitted diseases, life history of the tick, interval between dippings, 

 efficacy of dips, and arsenite of soda- 

 Bovine piroplasmosis in Switzerland, B. Galli-Valerio and H. Staldeb 

 (Schweiz. Arch. Tierhcilk., 60 (1918), No. 10, pp. y/7i--'/77, /?</. 1; abs. in Vet. 

 Rev., 3 (1919), No. 1, pp. 50. 51). — This is an account of piroplasmosis observed 

 in cattle in the canton of Vaud. This is the first record of its actual occurrence 

 in Switzerland, where it has long been suspected of occurring. Piroplasma 

 diveryens is thought to be the species present and Ixodes ricinus the transmitter. 



Atlas of the viscera, in situ, of the dairy cow, G. S. Hopkins (New York: 

 The Maemilhin Co., 1919, pp. 23, pis. 10). — This atlas has been prepared to meet 

 the needs of the veterinarian for a concise and graphic exposition of the 

 relations of the viscera of the cow. 



Investigations to determine the cause of certain sheep diseases in Colo- 

 rado, G. H. Glover, I. E. Newsom, and E. W. Alkire (Jour. Amer. Vet. Med. 

 Assoc, 55 (1919), Nos. 1, pp. 3-22; 2, pp. 128-146).— A general discussion of 

 losses of sheep in Colorado from disease. 



Feed given the pregnant ewe may affect the immunity of the newborn 

 lamb to hemorrhagic septicemia {Iowa Hta. Rpt. 1918, pp. 18, 19). — During 

 the course of experiments in which potassium iodid was fed to pregnant ewes 

 to doteruiine whether i( would i)reveflt goitre in lambs, hi'uiorrhage septicemia 

 broke out in the paddock in which the lambs were confined and all were sub- 

 jected to its ravages. It was found that in the lots where a very heavy iodin 

 allowance and a medium allowance were given the death rate was extraor- 

 dinarily high, whereas in the lot where no iodin was fed it was particularly 

 low. Thus it appears that the additlcm of iodin to the mother's ration decreased 

 the immunity of the lambs to hemorrhagic septicemia. 



Studies on the hyperimmunization of hogs against hog cholera, INI. Dorset, 

 C. N. McBryde, W. B. NiLEs, and J. H. Rietz (Jour. Amcr. Vet. Med. Assoc, 



