50 On the Effects of Opium 



EXPERIMENT 2S, 



Hmirs. Miuutei. 



•9. Five drops of the solution containing 



half a grain, were thrown into the 

 stomach ; heart beating 59. 



4. Heart beats 54, but the animal did 

 not appear to be much affected. 



10. Heart beats 49. 



20. Heart beats 52 5 the animal was 

 then set at liberty. 



EXPERIMENT 24. 



Into another frog one-fourth of a grain of 

 opium was thrown. Heart beating 60. 



Two minutes after, it beat b9. 



Five minutes after 54 3 after ten minutes, 54 ^ 

 after twenty minutes, it beat 55 ; after half an 

 hour it beat S7 ; after two* hours it was beat- 

 ing 5 



EXPERIMENT 25. 



IntO'the stomach of another frog one-eighth of 

 a grain of opium was thrown. Heart beating 5^8. 

 After two minutes it beat 58. 



