ON THE MAMMALIAN NERVOUS SYSTEM. 



525 



(4.) Cord Severed from Brain and Divided Longitudinally. 



(5.) After Section of Columns 1-3 Months Previous to Observation. 



from Brain. 



Cord Severed 



Cat (228) division of posterior roots on one side, llth dorsal '012 



,, (231) division of right posterior column at 7th dorsal, llth dorsal . . '025 



(252) division of both posterior columns at 10th dorsal, 6th dorsal . . '022 



,, (260) left hemisection at 9th dorsal, 4th dorsal '017 



(283) left hemisection at 12th dot sal, 6th dorsal '038 



,, (228) hemisection on right side at 9th dorsal, 1st lumbar '018 



Average '022 Daniell. 



(6.) General Average. 



Average, all cases, cord, Cat '032 Daniell. 



Monkey .... '022 



