LIST OF ILLUSTRATIONS. XXX111 



FIG. PAGE 



108. Common sensory paths, pain, temperature and touch, by way 



of ascending anterior cerebello-spinal and spino-thala- 

 mic tracts. Diagrammatic. (Original) 379 



109. Chief elements of the olfactory bulb. (Gordinier after Van 



Gehuchten) 384 



no. The chief retinal elements. (After Brubaker' s Physiology) .. 385 



in. The optic path. (Original) 387 



112. A simple spinal reflex arc. (Brubaker after Moral and 



Dayori) 391 



113. A more complicated spinal reflex arc, involving the fasciculi 



proprii. (Brubaker after Kolliker) 392 



114. Medullary groove, neural tube, etc. (Gordinier after E. A. 



Schd/er) 396 



115. Two histologic layers in the embryonic spinal cord, embryo 



4.25 mm. long. (McMurrich after His) 397 



116. Diagram showing development of neurones in the spinal cord. 



(McMurrich after Schafer) 398 



117. Ventral and dorsal zones of the spinal cord. (Gordinier and 



Quain after Kolliker) 399 



118. Median section of embryonic brain of the third month. (Mc- 



Murrich after His) 406 



119. Transverse section through the fore-brain of a four and one 



half weeks' embryo. (Gordinier and Quain after His) 407 



1 20. Diagrammatic sagittal section of vertebrate brain. (Morris's 



Anatomy after Huxley) 409 



121. Medial sagittal section through the brain of an embryo of 



three months showing the primitive fissures on the 

 medial surface of the cerebral hemisphere. (McMur- 

 rich after Mihalkovicz) 411 



122. The fossa cerebri lateralis, in embryonic brain of fourth 



month. (After McAfurrich's Development oj the Human 

 Body) 413 



123. Permanent fissures and sulci on the convex surface of the 



cerebrum as seen in a seven months' embryo. (Mc- 

 Murrich after Cunningham] 414 



124. Dorsal view of an embroynic brain, the roof of the lateral ven- 



tricles having been cut away. Embryo of 12.6 mm. 

 (McMurrich after His) 416 



125. Transverse section of medulla from an embryo of 9.1 mm. 



(McMurrich after His) 422 



