194 LECTURES ON THE CENTRAL NERVOUS SYSTEM. 



changes in configuration from the spinal cord to the medulla oblongata, particu- 

 larly those relating to the surface, were first described by Santorini, Reil, Burdach, 

 and Rolando. The nuclei arciformes and the anterior arciibrm fibres which cover 

 them were first accurately described by Arnold, who named them "the anterior 

 pons." The striae acusticae were discovered by Picolhomini. Even in the pre- 

 microscopic period there was an active dispute as to their relation to the acoustic 

 nerve. Real light was first thrown on the structure of the medulla oblongata by 

 Stilling, Kolliker, Meynert, Schroeder von der Kolk, and Deiters. In later 

 years investigations directed more particularly to the nerve-nuclei have been 

 instituted by Guddeu, Roller, Freud, Laura, Duval, Koch, Darkschewitsch, and 

 others. 



