VETEKIXAKY SCIENCE AND TKACTICE. 1093 



five in the stoniacli hut is usually fouiKl t'lu-ystod in tlu" stoniai-h wall. Kxporiinents 

 in treating cattle for this parasite were all failures. The fdurth stoniaeh <if sheep 

 was found he infested with S. vicarius as well as X n>ul<>rlnii. No post-mortem exam- 

 ination was made on <roats, hut it is helieved that they were infested with the same 

 parasites whieh were f(nuid in sheep. In tlie intestines of cattle 2 worms were found, 

 Uncinaria mdktUi and (J'Jsophatjostonia cidumbiaHiuii. In the intestines of sheep the 

 last-named species of worm was found, as well as U. cernua and a tapeworm ( Tltym- 

 nosdmaadinioides). In the bronchial tuhes of cattle »S'. »i/>*-((y».s' was found in consider- 

 able numbers, while in sheep S. jilaria was found. 



The author gives a general discussion of the various lines of treatment which have 

 been i>roposed by different authors for lungworms. From the experience of Drs. 

 Folsetter and Knight as well as from that of the author, it is helieved that the value 

 .of tracheal injections in the treatment of lungworms has lieen much overestimated. 

 The use of gasoline exi)elled many intestinal worms hut apparently had no effect on 

 lungworms. Turpentine and oil of cloves al.so gave negative results. In one instance 

 a steer was kept under the influence of chloroform for f hour without produc- 

 ing any effect upon tlie lungworms. In the treatment of intestinal worms various 

 remedies have been recommended, including bluestone, gasoline, coal-tar creosote, 

 thymol, and other substances. In experiments with coal-tar creosote it was found 

 that if the liquid entered the lungs the animal died promptly. When administered 

 carefully, as much as 63 oz. may be given to an adult sheep without fatal results. 

 In the author's experiments sheep treated with this substance showed marked 

 improvement within a few days after receiving a single dose. Tests were made with 

 thymol to determine the proper size of dose to be administered and the effectiveness 

 of the chemical. It was found that as much as 80 to 100 grains may be administered 

 to a sheep and 240 grains to full-grown cattle without causing ill effects. In the 

 author's experiments thymol was administered in solution in alcohol in doses of 

 from 32 to 48 grains. Thymol ajipeared to be unusually effective in destroying intes- 

 tinal worms, but was without effect on tapeworms. The experiments of Theobold 

 indicate that thymol is also of great value in expelling round worms from hogs and 

 horses. Brief notes are given on the various methods of drenching animals, on the 

 life histories of the parasites mentioned, and on measures of preventing infestation by 

 these worms. It is recommended that all affected animals should he immediately 

 separated from the rest of the stock, that pure water should he furnished for drinking 

 l)urposes, and that low, wet pastures should be properly drained in order to remove 

 the conditions which are favorable for the development of the lung ami stoniaeh 

 ^vorms. 



The cattle ticks (Ixodoidea) of the United States, D. K. Salmon and C. W. Stii.ks 

 f r. S. Dept. Agr., Biuraaof Animal rnda.^trij Rpt. WOO, ]>p. 380-401, pis. Jo,jUjs. 1,'iJ). — 

 The authors give detailed biological and economic notes on the species of cattle ticks 

 Avhich are known to infest cattle in the United States and cm a number of other 

 species which may at any time be imported from neighboring countries. Ixodoidea 

 is accepted as the name of a superfamily containing 2 families, Argasidie and Ixodidte. 

 An analytical table is given for the determination of the species belonging to these 

 families. Thus far 8 species of ticks are reported as infesting cattle in the United 

 States, vi/: Argas minialus, Ornithodoros mcgnini, BoopliUus anmdalus, Derinucentor 

 reliculatus, D. eleclUK, Ixodes ricinus, I. tiexagouus, and AmUgoinma americuuuiii. A 

 general account is given of the anatomy and life history (^f ticks in general. Kach 

 of the 8 species mentioned is described in derail and notes are given on the habit*", 

 life history, and distnlmtion (jf each sjiecies. A hihliography of literature relating 

 to ticks is arranged in alphabetical order and appended to the paper. 



Texas fever, M. Fkancis {7\'.ias Sta. Bid. GS, pp. (io, Jigs. 10, chiui 1). — In order 

 to oljtain good results from blood inoculation it is necessary to kee]) the cattle free 



1302— No. li—0'2 7 



