XVI Proceedings of the Association of American Anatomists 



By the time these four air sacs are established the fifth, or the most 

 anterior of the smaller air sacs, maj^ be seen arising from the mesial side 

 of the bronchus between the first and second air sacs. In rapid succes- 

 sion the sixth and seventh air sacs are formed, the sixth arising from 

 the bronchus between the second and third, while the seventh arises from 

 the bronchus between the third and fourth air sacs. , 



While this gross division of the lung into air sacs has been taking 

 place, various septa have been formed in the individual air sacs and the 

 characteristic appearance of the adult lung is established. 



ON THE ORIGIN AND DESTINATION OF FIBERS OP THE OCCIPITO- 

 TBMPORO -PONTINE BUNDLE (TURCK'S BUNDLE, MEYNERT). 

 By E. LiNDOx Mellus. Department of Anatomy, Johns Hopkins Vni- 

 versity. 



In a circumscribed experimental lesion of the cortex of the temporal 

 lobe in the monkey, involving the first and second temporal convolutions 

 projection fibers degenerated, passing by way of the sub-lenticular seg- 

 ment of the internal capsule to the pes pedunculi, where they occupy the 

 external fifth (occipito-temporo Briickenbahn, Flechsig: sensory tract, 

 Charcot and others). To reach the pes these fibers break through the 

 inferior portion of the lenticular nucleus in small bundles, pass around 

 the external geniculate body just above the point of exit of the optic 

 tract and enter the pes external to those fibers which form the posterior 

 extremity of the internal capsule as it passes between the thalamus and 

 the lenticular nucleus. Instead of turning downward toward the pons, 

 like the capsular fibers, they pursue a course obliquely backward and 

 slightly downward and, after a very short course in the pes, disappear, 

 apparently passing to the anterior quadrigeminal body. 



DEMONSTRATION OF FURTHER INSTANCES OF PARIETAL DIVISION. 

 By Ales Hkdlicka. United States National Museum. 



THE RELATIVE PROPORTIONS OF THE INTRACRANIAL FOSSAE IN 

 DOLICHOCEPHALY AND BRACHYCEPHALY. By Ales Hrdlicka. 

 United States National Museum. 



TOPOGRAPHICAL ANATOMY OF THE THORACIC AND ABDOMINAL 

 VISCERA AS TAUGHT IN THE DISSECTING ROOMS OF CORNELL 

 UNIVERSITY AT ITHACA, N. Y. By Abeam T. KerH. Cornell Uni- 

 versity. 



(Eead by title.) 



Topography of the thoracic and abdominal organs is worked out care- 

 fully on the dissecting room bodies. 



