. A text-book of human physiology . phenomena which follow de-struction of the semicircular canals of the pigeon. After transection of acanal he observed peculiar pendiilumlil-e movements of the head in the planeof the canal transected. Thus, if the horizontal canal were the one operatedon, the head was rotated incessantly to and fro in the horizontal plane. Thesemovements ceased after a time; but if the corresponding canal of the otherside were sectioned, the movements began again with still greater came on suddenly, if the animal was disturbed in any way. Thepigeons could no l
. A text-book of human physiology . phenomena which follow de-struction of the semicircular canals of the pigeon. After transection of acanal he observed peculiar pendiilumlil-e movements of the head in the planeof the canal transected. Thus, if the horizontal canal were the one operatedon, the head was rotated incessantly to and fro in the horizontal plane. Thesemovements ceased after a time; but if the corresponding canal of the otherside were sectioned, the movements began again with still greater came on suddenly, if the animal was disturbed in any way. Thepigeons could no longer fly and could only take food with difficulty. The moreextensive the destruction of the canals, the more intense were the disturbancesproduced, and the animals continued to exhibit such disturbances for years. Goltz performed a great service for this line of investigation when heobserved that the result of the operation can be descrilied primarily as adisturbance in the ability of the animal to keep its body in equUihrinm.^ He.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiology, bookyear1
