VETERINARY MEDICINE. 885 



sloiigliiiiy of tissiu' ;il)out tlio aiiklcs of afloctod animals. Ergotism may soiiio- 

 times be mistaken for foul foot or mycolie stomatitis. 



In cases wliere the tissue sloughs off the affected part may he treated with 

 antiseptics. Internal treatment sliould consist in the use of tannic acid, Epsom 

 salts, and iodid of potash. 



The poisonous nature of Baccharis cordifolia for sheep, A. Andrieu (Rev, 

 Facult. Agron. y Vvt. La Plata, 2. so:, 3 (IfWl), Xo. Jf-6, pp. J IS-J 31). —The 

 poisonous principle of this plant appears to be baccharina and exercises a toxic 

 effe<'t when administered by way of the mouth or hypodermically. Brief notes 

 are given on the symptoms of poisoning. 



Braxy, G. Hildrand {ZtscJtr. IiifcktionsK-rank. u. Hyg. Hausticrc, 3 (lOOl), 

 A'o. 3~.'i, pp. 323-3.'iS). — Clinical notes are given on a number of cases of this 

 disease. The experiments and observations of the author indicate that its 

 course may vary from 2 or 3 hours to 2 days. Infection is usually carried with 

 the food. The mortality varies from 5 to 25 per cent. No satisfactory pro- 

 tective inoculation has thus far been devised. 



Lip and leg' ulceration of sheep, M. E. Knowles (Breeder's Gaz., 52 (1907), 

 Xo. 19, pp. 930-938, figs. .'/). — This disease is most prevalent in Montana during 

 midwinter and sheep of all ages are susceptible. In cases in which the legs are 

 affected lameness appears very promptly. The disease is due to Bacillus ncero- 

 j)hori(s. Apparently transmission of the disease does not take place except 

 in slight scratches or abrasions of the slciu. 



A new louse from the sheep, W. Evans (Ann. Scot. Nat. Hist., 1907, No. 6'.J, 

 pp. 225, 226, fig. 1). — A new species of louse referred to as Hwmatopinus ovillus 

 is reported as occurring on the face of sheep in Scotland. The parasite is 

 briefly described. 



Tuberculosis in swine, J. H. M'Xeill (loiva Yearhook Agr. 1906, pt. 6, pp. 

 227-235). — Attention is called to the increasing importance of tuberculosis in 

 pigs as shown by the mortality on farms, and particularly by meat inspection at 

 abattoirs. An account is also given of hog cholera. 



Further experiments concerning' the production of immunity from hog 

 cholera, M. Dorset, C. N. McBryde, and W. B. Xiles (U. S. Dept. Agr., Bur. 

 Aniin. Indus. Bui. 102, pp. 96). — Previous investigations by the authors have 

 shown that hog cholera in the United States is caused by filterable and probably 

 ultramicroscopic virus found in the blood, and that the hog-cholera bacillus 

 probably plays the role of a secondary organism. This bacillus may invade the 

 hog after infection with the filterable virus and may have some influence on the 

 final outcome of the disease. It is possible, therefore, that a vaccine which will 

 protect the hog against the action of hog cholera will assist to some extent in 

 the control of the disease. It is urged, however, that all efforts looking toward 

 the prevention of hog cholera should be directed primarily towards securing 

 protection against the filterable virus. 



The greater part of the bulletin is occupied with detailed accounts of experi- 

 ments carried out during the years 1903 to 1906. In these experiments tests 

 were made of serum obtained from the hyperimmunized hogs, from nonhyperim- 

 munlzed immunes, and from other sources. 



During experiments conducted in 1905 and 1900, 13 immune hogs were 

 used for the production of serum, and all of these, with one exception, after 

 hyperimmunization, furnished a serum which in doses of 15 cc. would give pro- 

 tection against hog cholera. Simultaneous injection of serum and disease-pro- 

 ducing blood was given to 1G8 hogs, the dose of serum varying from 2.5 to 20 cc. 

 Of these hogs 21 per cent showed symptoms of sickness after injection and 9 

 per cent died. As contrasted with these hogs, 54 other hogs all became sick and 

 92.5 per cent died of hog cholera after receiving the same dose of disease-pro- 



