392 EXPERIMENT STATION RECORD. 



of NoOMi'd niid LcflMiiiflic rcliilivc tn the idcntiiy of the Imcilliis us the exciting 

 cause of ulcerative lynipliadeuitis aud coiita.siions acMie of horses. 



Convulsions in young pigs due to verminous infestation, Hru (Rci\ V6t. 

 [Toiihnisc]. ,J.'/ {]i)()!>), \o. J/, pit. 212-211; ahs. in Jour. Coniitar. Path, aiul 

 Thcr., 22 (1909), Xo. 2, pp. /J8-76'«).— During the winters of l!»0<>-7 and l!»07-8, 

 between December and March, this condition assumed an enzootic form and 

 occurred with gx'eat frequency in the author's neighborhood. His cases were 

 distrfl)uted over 90 different farms. Post-mortem examinations revealed the 

 px'csence of ascarids in considerable numbers, and of lesions in the digestive 

 tract. Parasites were distributed tln-oughout the intestine from the esophagus 

 to the rectum, and had ]iroduced signs of intestinal obstruction, of enteritis, 

 and, in cases where the intestinal wall had been perforated, even of peritonitis. 

 In several cases the lumen of the digestive tube was entirely olistructed by 

 masses of ascarids, in one case nearly a quart of parasites being found. Anthel- 

 mintic treatment followed by purgatives gave the best results. 



The present status of our knowledge of the causative agent of epizootic 

 lymphangitis of equines, B. Galli-Valekio (Centhl. Bnkt. [c/c.]. 1. AM., Ref., 

 Jf'i {1909), No. 19, pp. 577-582, fig. J).— The author finds that this disease is 

 probably due to the protozoan described by Rivolta as Cnjptocoecus farcimi- 

 nosiis. The affinities of the organism seem to warrant its reference to the genus 

 Leishmania. 



Three years of rabies in Indiana, J. P. Simonds (J/o. BuJ. Ind. Bd. Health, 

 12 (1909), Xo. 11, pp. 155-157). — An epidemic of rabies of no small proiwrtion 

 is stated to have existed in Indiana for the past 3 years. It seemed to have 

 reached its height in the summer of 1909 aud now appears to be abating some- 

 what, although the danger period is far fi'om being past. 



Since December, 1906, the brains of 240 animals have been examined, of which 

 145, or 60 per cent, were found to contain Negri bodies. 



Investigations of the spirochetosis of fowls of Tunis and of the active 

 agent in its transmission, Argas persicus, B. Galli-Valerio {Veiitbt. Bnkt. 

 [e/c], 1. AM., Orig., 50 {1909), No. 2, pp. 189-202, figs. 8; abs. in Jour. Trap. 

 Vet. Sci., 4 {1909), No. //, pp. 599, 600). — During the course of the investiga- 

 tions the author found that a fowl bitten by argasids which had been kept for 

 5 months in the laboratory was not infected. Larvfe from eggs of a tick which 

 had been used in the transmission of the disease did not prove to be infective. 

 Spirochwta anserina, »S'. maix-houxi, and »S'. gallinnnim are thought to be identi- 

 cal, anserinmn holding through priority. The following method is used in the 

 preservation of ticks in collections : First immerse for 24 hours in creosote 2 

 grains, nitrate of potash 10 grains, glycerin 200 grains, and water 800 grains, 

 and then pass into paraffin oil. 



Further observations on fowl spirochetosis, A. Balfour {Jour. Trop. Med. 

 and Hyg. [London], 12 {1909), No. 19, pp. 285-289).— This is a record of new 

 developments of which some of the more important observations are tabulated 

 aud illustrative cases described. 



" It has been found that lice {Menopon sp. ?) can, in all probability transmit 

 the disease from the sick to the healthy chick. ... In chicks relapses are 

 common. . . . The results of inoculations in the case of chicks have differed 

 from those obtained in fowls. . . . Ticks {Argas persicus), either as larvae, 

 nymphs, or adults, fed on chicks with acute spirochetosis exhibit the peculiar 

 chromatin granules first described by Leishman in the case of Ornithodoros 

 moubata fed on blood containing Spirochceta duttoni. . . . Chicks, inoculated 

 with an emulsion of crushed larvie. showing these granules, but no spirochetes, 

 develop acute spirochetosis. . . . Pigeons are apparently not inoculable with 

 this form of spirochetosis." 



