■il4 



Harris Hawthorne Wilder 



especial importance for the present paper, the two inner eyes and their 

 accompan3dng muscles and nerves. It was from this region that the 

 model referred to was constructed and the description given here is 

 based upon this, although constantly checked by reference to the sections 

 themselves. In section 180, here given, oblique sections of two of the 

 eye muscles appear, the two superior obliques with their nerve supply. 



Fig. 28b 

 (b) Section 250. At the level of the two outer eyes. There are also to be 

 noted two noses and the two lateral ears, encased in the os petrosum. Note 

 also the double centrum of the vertebra, with the two notochords. 



the Trochlearis, and the two superior recti. The first of these appear 

 in this section ventral to the others, and lie upon that side of the eye- 

 balls which is external with reference to the entire section but internal 

 with reference to each component, i. e., between the eyeball of a given 

 side and its own median axis. They are thus perfectly normal in posi- 

 tion. The third nerve. Motor oculi, which in another section is seen to 

 innerve the superior rectus, appears here in cross-section, one upon each 



