PHYSICAL AND LITERARY. 3-07: 



great guts of dogs, does not produce either 

 fuch fpeedy or powerful effeds, as wheit 

 thrown into the cavity of the abdomen. And 

 N° 6. compared with N° 10. fhews, that a 

 fblution of opium applied to the abdominal 

 m.ufcles, does not kill frogs fo foon as when 

 all the vifcera of the lower belly are expofed 

 to its adtion. 



(I) Altho' it feems probable, from N° 22. 

 compared with N° 24. that a folution of 0- 

 pum injedled into the veins of dogs does not 

 kill them fo foon as when thrown into the 

 cavity of the abdomen j yet this cannot be cer- 

 tainly concluded, fince the dog of N" 24.. 

 was much older and above ten times heavier 

 than the other. 



(m) It appears, that a folution of opium 

 injed:ed into the great guts of a dog, afFed:s 

 the inferior part of the fpinal marrow much 

 more remarkably than its fuperior part, or 

 the brain j fince the dogs of N" 21. and 22. 

 not only loft the power of motion fooner in 

 their hinder legs than in their fore ones, but 

 alfo were infenfible of any pain in them, and 

 yet howl'd ftrongly when their ears were 

 pinched. 



(;?) A 



