564 



DR THOMAS R. FRASER ON THE ANTAGONISM BETWEEN 





Cardiac 



Respirations, 



Size of Pupils, in 







Contractions, 



per 



fractions of an 



General Symptoms, &c. 





per 10 seconds. 



10 seconds. 



inch.. 





In 10 min. 



— 



— 



— 



Stumbles frequently. Wet fsecal 

 pellets passed. 



12 „ 









Pultaceous faeces passed. The fibril- 

 lary twitches are well marked and 

 general. The rabbit is lying on the 

 abdomen aud thorax. 



14 „ . 





21 





The respirations are often accompanied 

 with mucous sounds. Saliva is 

 escaping from the mouth. 



17 „ . 





22 



££ths x ffih& 



Tremors occurred, and the rabbit fell 

 on the side, but soon again lay on 

 the abdomen and thorax. 



20 „ 



— 



18 



-Htlis x iiths 



Tremors occurred. Semi-liquid fasces 

 were passed. 



23 „ . 



22 



18 



\%ths x ££ths 



The respirations are considerably im- 

 peded by saliva and mucus. There 

 is no arching of the back, and the 

 lower jaw rests on the table. 



26 „ . 



19 



17 



/o-tlis x g 8 o ths 



The respirations are laboured, and now 

 aud again obstructed bymucus, which 

 is removed only after energetic 

 struggles. Rabbit has again fallen 

 over on side, aud is unable to turn 

 itself. The fibrillary twitching is 

 now only slight. 



28 „ . 



11 







Only infrequent laboured respirations 

 occurring at irregular intervals. The 

 rabbit is lying on the side, and 

 movements of the limbs accompany 

 the respirations. The cardiac im- 

 pulse is very weak. 



28 „ 30 sec. 



~ 





sVhs x /-^ths 



Infrequent and laboured gasps, greatly 

 obstructed by mucus. 



At twenty-nine minutes after the commencement of the injection of physo- 

 stigmia, half a grain of sulphate of atropia was administered to the rabbit by 

 subcutaneous injection, when the symptoms became modified in the following 

 manner : — 





Cardiac 

 Contractions, 

 per 10 seconds. 



Respirations, 



per 

 10 seconds. 



Size of Pupils, in 



fractions of an 



incli. 



General S3 7 mptoms, &c. 



In 1 min. 



56 







sVths X Wths 



Babbit is still on side. Weak struggling 



2 „ 



— 



15 



— 



gasps occurring. 

 Eespirations are no longer gasping, 

 but they are still accompanied with 

 mucous sounds. 



3 „ 



6 „ 



58 



20 



— 



Bespirations are less noisy. 

 Eespirations are regular and full, and 



only occasionally accompanied with 



moist sounds. 



7 „ 



60 







Fibrillary muscular twitches have 

 again become prominent. 



