lis expp:riment station RKCORD. 



while tlio o1!uk1(M-s l):icilli are never present in lesions in horses whir-h 

 have ceased to react. Few horses react more than three times. The 

 speaker therefore l)elieve<l tliat maU(>in mav exercise a curative effect. 



D. K. Smitli l)rief1y discussed uialij^'iiaiit tumors, wdiich he stated 

 need further study. Their histoU)oical structure is well known hut 

 their etiolog-y is quite dou))tful. Mention was made of the various 

 theories devis(»d foi- explainino- the cause of tumors, including" the embry- 

 onic, intlannnatory, and mici'ohic theoi-ies. A call was made for a 

 systematic study of these growths, and the hope was expressed that 

 the cooperation of veterinarians along tliis line might lead to valuable 

 discoveries. 



A. S. Wheeler related some experiments with stomach worms in 

 sheep. Sfrr»)(/f//>fy ro/ifo/-fufi was reported as very prevalent in the 

 flock of sheep at l^iltmore, N. C, where 00 sheep died. The author 

 suggested that possibl}^ the eggs of this Avorm ai'e taken into the 

 stomach from the outside of the udder of the ewr. Sucking lambs 

 raised on grav(d and wood floors which had been thoroughly' disin- 

 fected became badly infested with the stomach woi-m. Experiments 

 were made in introducing male stomach worms directly into the 

 fourth stomach, })ut this apparently was without results. Turpentine 

 in 2 to -i oz. doses was used without beneficial results. Many of the 

 lambs died Avith the stomach full of worms. Fluid extract of spigelia 

 and senna in 2 to 4 oz, doses had no therapeutic effect. Benzine in -i 

 oz. doses was equally ineffectiAC, and man}^ fatalities resulted from it. 

 Chloro-naphtholeum in 6 oz. doses also proved ineffective. A num- 

 ber of experiments were tried in applying vermicides directly to the 

 worms in glass vessels. These showed that a 5 per cent solution of 

 chloro-naphtholeum would destroy the worms in a few minuteit;; tur- 

 pentine and santonin had no effect; lysol proved ({uite efficient, and 

 coal-tar products in general were most satisfactory remedies. Great 

 difficulty was experienced in getting the remedies into the fourth 

 stomach and in distending this organ. Some success was had in reaching 

 the fourth stomach by means of a probang, and experiments were made 

 in introducing th(^ vermicide directly by means of a trochar and canula 

 fi'om the outside. In these experiments 50 per cent of success was 

 had with chloro-naphtholeum. This method of introducing vermi- 

 cides, however, is considered to be impractical)le for the ordinary 

 sheep raiser. 



Dr. P. A. P^ish presented a paper on The Effect of Certain Drugs 

 upon Blood Pressure and Cardiac Iidiibition. The usual apparatus 

 for determining blood pressure was employed and the carotid artery 

 was connected with the appara-tu.*^. Various drugs Avere injected intra- 

 venously. It was found that the vagus nerves of the two sides of the 

 body vary greatly in the power of controlling the heart action. In dogs 

 there was a decrease in cardiac action after stimulation of the vagfus 



