MEDULLA OBLONGATA AND TEGMENTUM OF THE PONS. 



389 



the entire list of mammals, their frequently large development, and, above 

 all, the wealth of fibers entering into relation with them are evidence of this. 

 Among these are fibers from the cerebellum, still but little understood, and a 





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large strand from the center of the nervus abducens, well represented in 

 Pig. 348. Since in this center of the sixth nerve, however, fibers end which 

 pass through the fasciculus longitudinalis posterior to the centers of the 



