1911] Nervous System of Corydalis 255 



and a ventral. These are broken up at various levels so that 

 there may be several, three or more, cephalic or caudal parts 

 of these commissures. There are more in the 8th abdominal 

 and in the subesophageal than in the others. 



From dorsal to ventral sides also, fibers chiefly from dorsal 

 cells connect the upper and lower surfaces. 



In the brain there are two commissures a broad short median 

 and a longer ventral. Many other cross and longitudinal 

 fibers connect all levels. 



Cornell Univ., Ithaca, N. Y. 



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