504 EXPERIMENT STATION RECORD. 



ness, involving finally the spinal column and resulting in paralysis of the hind quar- 

 ters. The treatment is largely preventive and consists in furnishing suitable quan- 

 tities of food containing a proper proportion of lime and other mineral constituents. 



Anthrax, H. Marshall {Ann. Rpts. Bd. Agr. Del, n. ser., 3-4 {1903-4), />/>. 

 63-68).— The various tonus of anthrax are considered, together with an account of 

 the distribution of the disease in Delaware and the factors concerned in its spread. 



Immunizing- of northern cattle against Texas fever, R. J. Foster {Indus- 

 trialist, 31 {1905), No. 27, pp. 419-423). — The economic importance of the present 

 method of immunizing cattle against Texas fever is discussed. Recommendations 

 were made regarding the age at which cattle should preferably be inoculated, the 

 time of year and place for such inoculation, together with notes on the treatment of 

 the animals during the inoculation fever. 



Preliminary note on a protozoan occurring- in the eggs, larvae, nymphs, 

 and adults of ticks, B. H. Ransom I U. S. Dept. Agr., Bur. Anim. Indus. Oirc. 76, 

 pp 2). — An ameboid organism was studied which occurs in cattle ticks and passes 

 from one generation to the next through the eggs. The organism in question occurs 

 in both infectious and noninfectious ticks and can not, therefore, be a stage in the 

 life history of the Texas-fever parasite. The organism is described as new under the 

 name < 'haos acarophila. 



Dipping for cattle and sheep, F. W. White {Natal Agr. Jour, and Min. Bee, 

 8 {1905 ), No. 9, pp. 876-880). — The relative value of dipping and spraying is briefly 

 commented upon. Dipping is considered preferable and brief notes are given on 

 methods of practical dipping for sheep and cattle on stock farms. 



A note on the history of trypanosomiasis in English Sudan, A. Laveran 

 {Compt. Rend. Soc. Biol. [Paris], 58 {1905), No. 7, pp. 292-294).— A brief descrip- 

 tion is given of the trypanosotnes which have been found in domesticated animals in 

 Abyssinia and Sudan in connection with a historical account of diseases caused by 

 these organi'sms. 



Trypanosoma dimorphon in French Guinea, Cazalbou {Compt. Rend. Soc. 

 Biol. [Paris'], 58 {1905), No. 9, pp. 395, 396). — This parasite was found in the blood 

 of horses affected with trypanosomiasis in French Guinea. Brief notes are given on 

 the symptoms of the disease. 



Morphological and experimental studies of Trypanosoma paddse, Thiroux 

 {Ann. Tnst. Pasteur, 19 (1905), No. 2, pp. 65-82, }>!. 1, jig*. 15). — This trypanosome 

 which was found in the blood of Padda oryeivora is described in detail, and notes are 

 given on agglutination phenomena observed in reference to this organism and on its 

 behavior when cultivated in various nutrient media. Inoculation experiments w r ere 

 undertaken with a number of other birds in addition to the rice padda, many of 

 which proved to be susceptible. Rats, mice, and frogs were refractory. 



The treatment of trypanosomiasis by arsenious acid and trypanroth, A. 

 Laveran {Compt. Rend. Acad. Sci. [Paris], 140 {1905), No. 5, pp. 287-291).— The 

 author continues an account of his experiments in treating trypanosomiasis in rats, 

 mice, and other small rodents by means of arsenious acid and trypanroth. 



It was found possible by means of this treatment to cure or prevent the disease in 

 these animals. Each treatment consisted of an injection of 0.1 mg. for each 20 gm. 

 weight of the animal, followed 48 hours later by twice that quantity of trypanroth. 

 The animals subjected to this treatment lost weight temporarily, the skin became red, 

 but no serious trouble was incurred. 



Infectious anemia of horses, E. Thierrv [Jour. Agr. Prat., n. ser., 9 {1905), 

 No. 5, pp. 149-151 ). — This disease appears under acute, subacute, and chronic forms. 

 Tt is apparently due to an organism of ultramicroscopic size. A similar disease has 

 been noticed in sheep. 



Infectious anemia of the horse, Carre and II. Vallee {Bui. Mens. Off. Ren- 

 seig. Agr. [Paris], 4 {1905), No. 9, pp. 1075-1077).— The symptoms and forms of this 



