Proceedings of the Association of American Anatomists XI 



by Wilder and called by bim simply the " raised unnamed area at either 

 side of the tnber." 



The cephalic border of the thalamus as a whole, lies Just caudad to 

 the "head" of the cauda striati along the entire curved (concavity 

 caudad) course, ventrad, of the latter to the base of the brain. 



TWO SKULLS OF LARVAL NBCTURUS. By Robert J. Terry. Washington 

 University, St. Louis, Mo. 



The skulls described are of larvae, 49.5 and 23.5 mm. long. The study 

 was begun by Dr. B. F. Kingsbury, who gave his attention for the most 

 part to the development of the bones. When the work was taken up by 

 me a review of the chondrocranium was made in which it was found 

 that the conditions present agreed in most respects with the descriptions 

 of Winslow and Miss Piatt for stages of about the same age. It seems 

 to me, however, that there are some indications of the presence of occipi- 

 tal plates, and in regard to the ledge that grows over the facial and 

 palatine nerves and through which the cephalic division of the auditory 

 passes, it appears to me to be the primary floor of the otic capsule in 

 this region, and this view is supported by the fact that the prootic bone 

 in its development extends into this ledge first and not into that cartilage 

 upon which the nerves rest. 



The bone called squamosal by Huxley, and likened to a boomerang, 

 appears as a small scale in membrane over the region of the external 

 semicircular canal and overlaps the otic process of the quadrate; a long 

 ligament connects it with the otic operculum. The quadrate ossification 

 is remarkable in having its dorsal half ossify in membrane, while the 

 ventral end is a ring of bone formed in the quadrate cartilage beneath a 

 layer of superficial, loosely-arranged cells. 



SOME PRACTICAL ILLUSTRATIONS IN EMBRYOLOGY. By Edmund W. 

 Holmes. Philadelphia, Pa. 



(Eead by title.) 



DESCRIPTIONS OP A METHOD FOR PREPARING BRAINS USED IN 

 CLASS DEMONSTRATIONS (with specimens). By Addinell Hew- 

 soN. Jefferson Medical College, Philadelphia, Pa. 



These brains were prepared in subjects received at random in different 

 seasons of the year in periods varying from three to ten days after death. 

 Bodies were injected by the following formula, from either the carotids 

 or the f emorals : 



