VETERINARY SCIENCE AND PRACTICE. 85 



Parasitically inoculated diseases, E. G. Wheler ( Tranx. Hitjhkmd and Agr. 

 tSuc. Scotland, 5. ser., 14 {190^), pp. 16-35, figs. 'J). — The author briefly reviews his 

 work on the life history of the grass tick {Lroden ricinm), already noted (E. S. K., 

 11, pp. 891, <S92). In this article especial attention is given to a comparison between 

 loui)ing ill and a number of other similar diseases, including Texas fever, malaria, 

 tsetse-fly disease, surra, heartwater, and yellow fever. The author believes that 

 louping ill is in some unexplained manner transmitted from one animal to another 

 by means of the grass tick. It is argued that the striking similarity in the occur- 

 rence and symptoms of louping ill and other diseases which are known to be trans- 

 mitted through the agency of insects substantiates this assumption. 



Verminous bronchitis in calves [Fanners' Gaz., 60 (1901), No. 42, p. 763). — 

 The symptoms of this disease are l)riefly described. The disease is due to the pres- 

 ence of Strongghis Jilaria in the bronchial tubes. In ordinary cases of the disease 

 turpentine in spoonful doses may be administered daily in a few ounces of linseed 

 oil. Where a considerable numl>er of animals are infet'ted at once they may be 

 inclosed in a tight apartment and fumigated with sulphur. The use of chlorin gas 

 for the same purpose is recommended as very effective, but rather more irritating 

 and dangerous than sulphur. 



The migration of the embryos of tapeworms, Hofm.\nx (Berlin. Thierarztl. 

 Wvf'n.'ichr., 1901, No. 36, pj). 537-541, figs. 7). — From extended observations on this 

 subject it is concluded that the oncosphere stage of tapeworms may leave the 

 alimentary tract by means of the lymphatic vessels and efferent veins; through the 

 veins they may reach the liver, and by means of the lymph fluid they may obtain 

 entrance into the general circulation. They may pass through the capillaries, after 

 remaining in that situation for some time. 



The toxin of tapeworms, Massineo and Calamida {Jour. Med. ViL et Zootech., 5. 

 ser., 5 (1901), Sept., pp. 537-541; trans, from Gior. R. Soc. Accad.Vet. Ital., 1901, No. 

 30). — The authors investigated the causes of the pathological changes produced by 

 the presence of tapeworms in the intestines of various animals. The tapeworms 

 were crushed in a mortar and an extract was obtained without heating and was later 

 passed through a Berkefeld filter. The species used in these experiments were 

 Taitia saginata, T. expiansa bovis, T. alba, T. cucumerina, and T. camurus. The filtrate 

 obtained by treatment just described was used for inoculating guinea pigs, ral)bits, 

 and dogs. In the first series of experiments filtrate was inot-ulated hypodermically 

 in doses varying from 2 to 35 cc, according to the weight of the animals. Symp- 

 toms of intoxication were produced in all cases, and 2 guinea pigs died after 24 hours. 

 In further experiments similar results were obtained. The authors believe that the 

 pathological changes produced in the intestines of the hosts of tapeworms are due to 

 a secretion of toxin rather than to mechanical friction. 



Sturdy or gid, F. V. Theobald (Agr. Gaz. [London^ , 54 ( 1901 ) , No. 1455, p. 335, figs. 

 2). — A description is given of the parasite which causes this disease, and the usual 

 symptoms of the disease are mentioned. The life history and development of the para- 

 site are described. In the prevention of this disease the author recommends that the 

 hea<ls of infested sheej) should be destroyed in order to prevent their being eaten by 

 dogs. Dogs which are allowed to run on sheep pastures should be treated frequently 

 for tapeworms in order to prevent transmission of this parasite to the sheep. 



Treatment of sheep scab with acaprin, H. Raebiger (Monatsh. Prakt. TJtierh., 

 13 (1901), No. 5, pp. 231-236). — Experiments were carried out for the purpose of 

 testing the efficiency of this substance in destroying the scab mite. In all 550 sheep 

 suffering from Dermatocoptes infestation were treated with acaprin. In May 100 

 ewes and 100 lambs, all shorn, were dipped in a solution of acaprin. The wool was 

 not injured, Init the dipping had no effect on the scab nntes. It was also noted that 

 the workmen were badly affected by the solution and complained of headache. 

 Further experiments with this substance showed that by prolonging the bath and 

 thoroughly rubbing the sheep with brushes the mitea may be destroyed, but the 



