VETERINARY MEDICINE. 285 



Trypanosomiases of Barbary in 1905, Edmond and 1']tienne Sergent (Ann. 

 Inst. I'aslciir, 20 {JUIKI). \u. S, ji/j. (Hhj-GHl). — A brief review is presented show- 

 ing the distribution of various forms of trypanosomiasis in different parts of 

 Tiarbiiry. It ajipoMrs tliiit about,!) per cent of dromedaries are infected and 0.17 

 ]iei' cent 111" horses. 



Kxpei'iments in testin.u tiie virus of ditferent forms of try[)an()S()nuasis on 

 rats and other experimental animals showed that the trypanosonies of the dis- 

 ease known as debab are not ordinarily carried by horse flies and are not 

 capal)le of penetrating through healthy nuicous membranes, as is the ease with 

 the trypanosome of dourine. The authors believe, therefore, in the existence 

 of two distinct forms of tryitanosomiases in Baibary. 



Congestive and hemorrhagic forms of pasteurellosis in the horse, Fairise 

 (Rci: Grn. Med. Vvt., 8 (1906), Xo. 80-90, pp. 2:lo~,iJ,0).—l\\ the early stages of 

 pasteurellosis in horses an acute congestive condition is frecpiently observed, 

 but such congestion is ordinarily secondary to pulmonary lesions. In cases 

 where sei'ious hemorrhagic conditions prevail it is necessary to administer 

 heuHjstatic drugs and also to reduce the temperature. Most of the drugs which 

 might be thought of in this connection liave certain disadvantages for the 

 reason that they produce depression. Among these mention is made of acet- 

 aiiilid and quinin. The best results were obtained from the use of chlorid of 

 lim(» and gelatin. 



Experiments with Lorenz' organism of pneumonia, Schweikert (Berlin. 

 TleriirzH. Wehnsdir.. 1906, No. 30, pp. 567, 568). — A small piece of skin was 

 removed from a horse affected with pneumonia, and from this material the 

 organism of the disease was obtained in pure cultures. When used in inocu- 

 lating a colt it produced the regular symptoms of the disease on the following 

 day. Another colt exposed to natural infection also showed the usual symptoms, 

 but recovered. 



The etiology of pleuro-pulmonitis of horses, L. Baruchello and A. 

 rRicoLO (Vlin. Vet. [Milan], 29 (1906), No. 29, pp. 697-100). ^The authors 

 were unable to isolate any bacterial organism which could be considered as the 

 cause of this disease. In the blood and spleen, hoNvever, certain corpuscles 

 were observed which ai)peared to be of a protozoan nature and which may be 

 concerned. 



Feeding wild plants to sheep, S. B. Nelson (Washington Sta. Bui. 73, pp. 

 6.'i figs. J/O). — Botanical descriptions and illustrations are given on 40 i)lants 

 wliich occur on slieep ranges, which were considered worthy of investigation to 

 determine tlieir harmful and harmless character. Notes are given on losses 

 which have occurred on sheep from time to time and which have generall.v been 

 attrii>uted to the action of poisonous i)lants. The flora of one region noted for 

 the occurrence of jwi-soning c(mtained r>5 different plants, the most of which were 

 gathered in a fresh condition and fed to sheep. 



As a result of tiiese experiments it appeared that Znga'lcnus vcneno.itis may 

 cause poisoning, but that Dclphiniinn nienziesii is not poisonous in any stage of 

 growth. Among the lupines studied only Lupinus ornatus appeared to be 

 poisonous. Neither arnica, wild cherry, nor any of the other plants studied 

 caused symptoms of poisoning. 



Poisoning of horses by the common horsetail weed (Equisetum arvense), 

 A. T. I'ktkks and L. B. Stirdkvant { XchrasLa ,s7(/. Rpt. lini.',, /ip. 111-115, 

 pi. 1). — On account of complaints of the poisoning of horses from eating com- 

 mon horsetail an examination was made of this plant and feeding experiments 

 were carried out. In one case a mare was fed 4(i ll)s. of iKU'setail hay during 

 a period of :'> weeks witliout showing any characteristic sym])toms of jioisoning. 

 In all of the experiments the horses showed a distinct aversion to the weed. 



