480 EXPERIMENT STATION RECORD. 



o days later, substitutlug carroii oil foi" the alcohol ami milk. The lambs on 

 the grass-lots had similar treatment. The experiment liegan on ;\Iarch ^^t, and 

 on August 10 the lambs were shiughtered. 



All lambs on the bare-lot were in marketal)le condition, \vhile only lialf of 

 the lambs on the grass-iot were in condition. The former were in every way 

 more satisfactory. The bare-lot did not prevent infestation of the lambs with 

 stomach worms, but greatly reduced the number of nodule worms. Rotation 

 of pastures is probably the best method of dealing with stomach worms. Car- 

 bon bisulphid gives rather better results as a vermifuge than coal-tar creosote. 



The etiology of hog cholera and swine plague, F. Hutyba (Ztschr. Iiifck- 

 tionskrank. u. Kijg. Ilausticir, 2 (1901). No. 4-5, pp. 281-309).— Iteteveuce is 

 made to the recent work of American and German investigators who have 

 shown that hog cholera may be caused by filterable virus supposed to contain 

 an ultramicroscopic organism. On account of the close connection which 

 seems to prevail in most outbreaks of hog diseases between hog cholera and 

 swine plague, the author vmdertook a series of experiments for the purpose of 

 determining whether swine plague might also be due to a filterable virus. The 

 results of these experiments, together with theoretical considerations based on 

 other investigations and the known facts in connection with hog cholera and 

 swine plague, indicate that swine plague is primarily due to the action of a 

 filterable virus. 



The author concludes that after primai'y hog cholera infection has been es- 

 tablished in a hog, it may be possil)le for the characteristic anatomical symp- 

 toms of hog cholera or swine plague, or both, to develop secondarily as a 

 result of the action of Bacillus .suipestifcr or B. suuepticus. It is believed, 

 therefore, that the anatomical hog cholera and swine plague, whether occurring 

 simultaneously in the same animal or not, are both due t» an ultramicroscopic 

 micro-organism found in the filterable virus of hog cholera. These results indi- 

 cate that hog cholera and swine plague are different manifestations of the same 

 disease, the variation of symptoms being due to the micro-organisms which sec- 

 ondarily infect the hogs. 



The horse; its treatment in health and disease, .1. W. Axe (London, 1907, 

 vol. 7, pp. X-\-188, ph. l-'i, figs. 92). — In this part of the author's treatise on the 

 horse, veterinary medicines are discussed and formulas are given for the prepa- 

 ration and administi'ation of medicines in the treatment of animal diseases. 

 The other subjects included in the volume are care of diseased animals, veteri- 

 nary hygiene, examination of the air of stables, mineral and plant poisoning, 

 and some of the more frequent operations of a surgical nature. 



Fatal effects produced in horses by spoiled fodder, W. Zwick {Ztschr. 

 Infektionskrank. u. Hyg. Hausticrc, 2 (1907), No. ',-5. pp. 310-il'fO, pis. 2).— 

 Opportunity was had to observe a number of cases of the toxic effects of spoiled 

 fodder upon horses, the symptoms in these cases resembling those of enzootic 

 spinal paralysis. The water which the horses received was in satisfactory con- 

 dition and stables were kept in a sanitary state. 



Feeding experiments were made with hay which was apparently in good con- 

 dition and which there was little I'eason to suspect. Those experiments indi- 

 cated that the hay carried a pathogenic coccus which was tested in pure cultures 

 in inoculating mice, i-abbits, and horses. It was soon found that the hay in a 

 fresh condition was not injurious, but that the pathogenic cocci became asso- 

 ciated with it later partly perhaps as the result of decomiwsition. 



Report of the commission for studying the amount of ergot to be per- 

 mitted in oats, Bastide et al. (Bui. Off. Gouvt. G^n. Alg^rie, 1907, No. 13, 

 Slip., pp. 176-258, charts 19). — It ajipears that ergot is so commonly found in 

 oats as ottered upon the market in Algeria that a commission was established 



