Vegetable Narcotic Poisons. 53 



Noon. Panting, and the pupils contracting and 

 expanding. 



12.17. Cannot walk ; great paraplegia. 



12.21. Twenty minims of the liq. ammonise were 

 injected into the left jugular vein. 



Result. The heart's action was immediately in- 

 creased. 



12.24. Pricked his ears and looked more lively. 



12.26. Walked, and tried to run. 



12.35. Runs about and jumps. He recovered per- 

 fectly. 



Similar experiments, with the assistance of Dr. O. V. 

 Lawrence, with even larger doses, were performed, and 

 always with the same result as before described. 



COMMENT. 



As this Appendix has been written to record facts 

 really ascertained, I think it very profitable to make 

 the following extract from Dr. A. W. Blyth's work on 



" Poisons," London, 1884 : 



" ACTION OF MORPHINE ACETATE ON DOGS. 



" From 1 J to 7*5 grains injected into the circulation of a 

 dog, shows its effect almost immediately. The dog becomes 

 uneasy, and moves its jaws and tongue as if some peculiar 

 taste were experienced. It may bark or utter a whine, and 

 then in a minute or two falls into a profound sleep, which is 

 often so deep that while it lasts usually several hours an 

 operation may be performed. In whatever attitude the limbs 

 are placed, they remain. The respiration is rapid and stertor- 

 ous, and most reflex actions are extinguished. Towards the 

 end of the sleep, any sudden noise may startle the animal, 

 and when he wakes, his faculties are evidently confused. A 

 partial paralysis of the hind legs has often been noticed, and 

 then the dog, with his tail and pelvis low, has something the 



