24 F. T. ROGERS 



Pigeon 126 



June 21. Bird decerebrated and thalamus cauterized with a hot 

 probe. 



June 22. 9.00 a.m. Temp., 36°C. Bird sluggish; stands with 

 difficulty; toes are slightly arched upward so that the bird tends to 

 stand on the claws only. (This condition is referred to as 'claw foot' 

 in the laboratorj^ record.) Bird put in a warm incubator kept at 32°C. 



10.00 p.m. Bird is walking around; temperature of bird is 43°C. 



June 23. Incubator in which bird is kept adjusted to 30°C, and 

 bird stays in incubator until July 1. 



June 26. Bird is preening itself. Is fed and watered by hand. No 

 difficulty in feeding. Temperature of bird, 41°C. 



June 28. Temperature of bird 38°C. Rotatory and post-rotatory 

 nystagmus of eyes when bird is rotated. Equilibrium normal; feathers 

 fluffed. Difficulties in feeding, as bird rejects much of the food put in 

 the mouth. By use of much water, however, some is swallowed. 



June 30. Bird qviiet; no restlessness when starved. 



July 1. Bird removed to room temperature (24°C). Temperature 

 of bird falls to 37°. Pupillary reactions to light present but sluggish. 



Size of pupil, bright light, 3 mm. diam. 



Size of pupil, dim light, 4.5 mm. diam. 



Change in size of pupil with every winking movement of the eyelids. 



Vomiting. Respiration, 22. Equilibrium normal. Bird perches on 

 my finger. 



July 2. 10.00 a.m. Bird has been in cool place over night. Body 

 temperature, 33.5°. Respiration, 17. Slight tendency to claw foot. 

 Slight disturbances in maintaining balance on a perch. Bird preens 

 itself. Bird put in incubator at 84°. o 



11.00 a.m. Bird squatting on floor. Temperature of bird 36 . 

 Preening. 



Bird has been starved for forty-eight hours, but no restless walking 

 movements occurred. 



4.00 p.m. Temperature of bird has risen to 40 . Typical decerebrate 

 restlessness; bird walking about the cage. This does not cease when 

 bird is given excess water. Bird is picked up by hand and put down 

 again. Walking movements stop momentarily and then resumed. q 



July 4. 6.00 p.m. Very hot day. Temperature of room 34 . 

 Bird has body temperature of 44°. Bird walking around its cage all 

 day. Given water and it becomes quiet. Feathers fluffed in normal 

 way. Pupils widely dilated. 



10.00 p.m. Temperature of bird 39.5 . Temperature of room 30 . 

 Bird standing quietly asleep on one foot. Feathers slightly fluffed. 



Turn on light in cage suddenly. Bird begins walking around. Turn 

 off the light and bird becomes quiet. Again the light was turned on. 

 The bird appears to wake up. Turns its head, moves a few steps, hesi- 

 tates, and then begins walking around the cage. Light removed. 

 The bird continues walking in semi-darkness and walks against the walls 

 of the cage. Repeats this several times. 



