340 Transactions. 



Exp. 20. 

 P.ji. Pigeon. Weight, 319 grains. 



5.6. C4ave 17-3 minims of a 0-5-per-cent. solution tutin (16mlgm. per kilo body- 



weight), per OS. 



5.7. Appearance of symptoms. 

 5. 7 J. Clonic convulsions began. 



5.11. Movements ceased ; pupils dilated ; dead. 



P.M. — Crop full of half-digested food. No abnormalities observed. 

 Result. — Death in 5 minutes from a dose of 16 mlgm. per kilo. 



Exp. 21. 



P.M. Pigeon. Same as used in Exp. 14. Weight, 345 grams. 



5.14. Gave 16-8 minims of a 0-5-per-cent. solution tutin (15 mlgm. per kilo body- 

 weight), per OS. Had received no food since the day before. 



5.20. Seems quite normal ; is preening its feathers. 



5.21. Attempting to vomit. 



5.22. Retching. 



5.23. Retching. 



5.24. Retching ; drowsy-looking ; tremulous about head. 

 5.24.^. Retching. 



5.25. Squatted do\\^l on bottom of cage. 

 5.25.K Retching. 



5.2(i. Very tremulous about head and neck; dazed and sleepy looking; retching 



every half-minute or so. 

 5.29. Twitching of muscles of neck ; head being drawn back with sharp jerks. 

 5.36. Slight convulsions affecting the fore part of the body ; wings rigidly extended, 



and marked clonic movements of tail and neck ; remains standing between 



the attacks ; blinks its eyes heavily, as though onlj' keeping awake with the 



greatest effort ; pupils contracted. 

 5.40. A more severe convulsion ; bird thrown over on to its back, but recovered its 



position again. 

 5.43. A most severe convulsion, bird thrown over backwards ; lies on back, with head 



bent back beneath body ; all muscles in continuous clonic spasm. 



6.49. Convulsions have continued without intermission since last note ; movements 



now becoming feeble. 



5.50. All movements ceased ; dead. 



P. 31. — Crop empty. No abnormality observed. 



Besvlt. — Ivilled in 35 minutes by a dose of 15 mlgm. per kilo, 



Exp. 22. 

 P.M. Pigeon. Weight, 203 grams. 



5.13. Gave 10-3 minims of a 0-5-per-cent. solution tutin (15 mlgm. per kilo), per os. 

 5.20. Lying on back, in continuous convulsive movement. 

 5.25. Gave 10 minims of a 1-in-l solution chloral-hydrate, equal to 0-6 gram chloral, 



per OS. 

 6.25. Dead. 



P.M. — Crop half-full. No abnormality observed. 



Result.- — Death in 72 minutes from 15 mlgm. per kilo. Life evidently prolonged 

 by the chloral. 



Exp. 23. 

 P.M. Pigeon (young). Weight, 375 grams. (Fed at 1 p.m.) 



3.49. Gave 15-5 minims of 0-5-per-cent. solution tutin (13 mlgm. per kilo body-weight), 



per OS. 

 3.52. Slight attempts at vomiting. 



4.0. Lying on back, in convulsions ; convulsive movements continued till death. 

 4-8. Death. 



Result. — Death in 19 minutes from 13 mlgm. per kilo. 



Exp. 24. 

 P.M. Pigeon (young). Weight, 363 grams. 



3.46. Gave 14-8 minims of 0-5-per-cent. solution tutin (12 mlgm. per kilo body-weight), 

 per OS. 



3.50. Vomiting repeatedly, bringing up quantities of grain. 



