made on Men and Animals. 139 



?ifter which we repeated, with the stimulus of the scalpel, the 

 experiment before described. 'Hie results were : 1st, iSoinc 

 visible movements in the ventricles of the heart and the left 

 auricle, more visible in the right, but none in the separated 

 portion of the aorta. In the portion of the sartorius umsclc 

 we observed very strong contractions, as well as in the in^ 

 testines, and verv strong contractions in the straight muscle 

 of the leg. 2d,' With "the pile we excited movements of 

 svstole and diastole very sensible in the four cavities of the 

 heart, but still more sensible in the right auricle, and with- 

 out any appearance in the portion of the aorta, W'e re- 

 marked a shortening of twelve millimetres in the portion of 

 the sartorius muscle : the movements of the intestines were 

 pretty strong, and those of the straight muscle of the leg 

 very strong. At forty minutes the experiment was sus- 

 pended till the forty-lifth. After this term, haying resumed 

 it as before, the results we obtained were as follow : — The 

 scalpel exercised scarcely qny action on the left ventricle,, 

 and none in the luft auricle'. There were pretty apparent 

 movements in the pght ventricle, and still more apparent 

 in the rioht auricle : we found that those of the portion 

 of the sartorius musclp were two inillimetres : none wer^; 

 f xcited in the intestines, but there were very strong move- 

 ments in the straight nuisclc. 2d, On the other hand, we 

 obtained by the pUc very faint movements in the left ven- 

 tricle and auricle, more' apparent in the right ventricle, and 

 still stronger in the right auricle. Those observed in the 

 portion of the sartorius muscle were ten millimetres, and 

 vcrv visible ones were perceived in the intestines ; very 

 sirono- in the i)efore-mcntioncd anterior straight muscle. At 

 fifty ininute;^ after decapitation all the parts wer^e left at rest 

 till lifty-three minutes. During this interval I uncovered 

 and ci'it transvcrsclv the sartorius nmscle, and we theu 

 repeated the experiment as before, 'f he resvilts we had with 

 the scalpel were as follow : 



1st, The left ventricle and auricle gave no marks of sen- 

 sibility ; those exhibited by the right ventricle were scarcely 

 perccplil)le, while the right auricTe gave very strong move- 

 ments : those of the portion of the sartorius nmscle were 

 ihrce millimetres. The intestines were not irritated, b\it the 

 Strai'j;Ut m.uscle and the two parts of the left surtt)rius gave 

 vcry'sirong contractions. 'Jd, By making use of thi; pile, 

 the left veutriclp exhibited only V^'i'V ^i^ght niovements, and 

 ^l()lu• were produced in the auricle of the same side. The 

 inovements in the ritrht ventricle were more apparent, aiul 

 gull ^Teuter in the auncle of the same side. In the portion 



