26 F. T. ROGERS 



Bird preens itself; preening ceases on striking a sudden blow to the 

 cage. 



Bird makes slow circus walking movements to the right. No inhibi- 

 tion of this slow labored swaying type of locomotion by giving water. 

 Walks with outstretched head and neck in a rather comical fashion. 

 Tendency to claw foot most marked just after the bird has been handled. 



Given more water; walking continues. 



Pupils widely dilated. Respiration, fourteen per minute and shallow. 



Nystagmus of eye: Deviation present alone if rotated rapidly. 



Slow rotation; once in twenty seconds. Quick component present. 



Quick rotation; once in five seconds. Quick component absent; devi- 

 ation present. 



Bird unable to perch on finger. 



Bird put in incubator at 30° over night. 



July 8. Given feed and water. Temperature of bird, 38°. 



July 9. Crop still contains feed from yesterday. No restlessness. 

 Preening at times. 



July 10. Bird taken from incubator. 



July 11. 8.00 a.m. Temperature of bird is 28.5°. 



Bird can barely support itself on its feet. Wings outspread. Marked 

 claw foot. 



Nystagmus of eyes absent on rotating rapidly or slowly. 



Compensatory movements of head to rotation very active. 



11.00 a.m. Put bird in incubator at 31°. 



6.00 p.m. Temperature of bird, 38°. 



Bird is standing in a normal fashion. Eye and head nystagmus pres- 

 ent, normal. Given feed and water. 



9.00 p.m. Typical decerebrate restless walking movements; crop 

 nearly empty. 



July 12. Bird in incubator. Temperature of bird, 41°. Normal 

 restless walking movements. Given water and walking movements 

 cease for a short time and then again begin. 



July 14. Bird died about 3.00 p.m. 



In emaciated condition. 



Young female bird. 



AUTOPSY 



The skin was sunken in over the medial bridge of bone so as 

 to leave large cavities on either side of the head. The stump 

 of the brain stem was covered by a small blood clot. 



All of the cerebral hemispheres was gone except possibly a 

 small bit of the cortical parts bordering the longitudinal sinus. 

 Histologically, this showed no nerve fibers or nerve cells nor in 

 the serial sections that were made could any continuity be traced 

 with the brain stem. 



