Fig. 52 A projection upon the horizontal plane of the dorsal (for the most 

 part) portions of the cranial, occipital, and anterior spinal nerves. X S.3. 



Fig 53 A projection upon the horizontal plane of the ventral (for the most 



part) portions of the cranial,, occipital, and anterior spinal nerves. Here as in 



?ures 51 and 52 the right side of the head was used but the projection was 



arranged to appear as of the left. X8.3. For abbreviations see pages 299-301. 



401- 



