Bremer, Aberrant Roots. 



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Fig. I. Graphic reconstruction of human embryo, 10.2 mm., right side. (H. E. C. series 736, 

 sections 16510200.) X 50. FI, IX, X, XI, cranial ner^-es; XII, roots of hypoglossal nerve; CI, 

 first cervical nerve; tned., floor of medulla; ot. otocyst; a, aberrant branch of abducens; b, aberrant root 

 from mesial part of medulla, running laterally and joining c, a separate strand of the glossopharyngeal 

 nerve; x, degenerating hypoglossal root. 



Fig. 2. Graphic reconstruction of same embryo as fig. i, left side. (H. E. C, series 736, sections 

 90 to 125.) X 50. a, loop of posterior root of abducens; b, aberrant branch from this loop, joining c, 

 aberrant root from mesial part of medulla; all run ventrally. For other lettering, seen fig. 1. 



