1921] Proceedings of the Academy of Science 15 



vein about a centimeter in diameter emerges from near the middle of 

 the ventral surface of the upper left lobe and courses directly cephalad 

 to empty into the left innominate vein. A short distance before it 

 empties into the innominate this vein receives the accessory hemi-azy- 

 gos vein. The right pulmonary veins and the pulmonary vein from 

 the lower left lobe communicate with the left atrium as usual. 



Alfred Brown (Anatomical Record, 1913) has show^n that the pul- 

 monary system in the cat arises from an indifferent splanchnic plexus 

 in the region of the lung bud. This plexus has venous connections on 

 the one hand with the sinus venosus and on the other with neighboring 

 systemic veins (cardinals, segmentals, and others). Conditions simi- 

 lar to those shown in the anomaly cited apparently arise as a result of 

 some interference with the return of blood through the pulmonary 

 portion of the embryonic plexus thus causing both pulmonary and 

 bronchial blood to enter the bronchial veins and causing their great 

 enlargement. In this particular case then the large vein draining the 

 upper left lobe seems to represent the enlarged left bronchial vein and 

 that portion of the accessory hemi-azygos between the innominate and 

 the junction of the left bronchial with the accessory hemi-azygos. 

 Due to the enlargement of the bronchial vein the accessory hemi- 

 azygos appears to be a side branch of it. 



A More Phenomenal Shoot. William F. Prouty. 



At the last meeting of the North Carolina Academy of Science Dr. 

 B. W. Wells described "A Phenomenal Shoot" which grew near Ra- 

 leigh during the season of 1919. This shoot "grew from the stump of 

 a beheaded tree of Paidownia tomentosa." The shoot described bj^ 

 Dr. Wells was 7.75 inches in circumference at the base, had 20 inter- 

 nodes and was 193^ feet in length. This shoot was supposed to have 

 grown in one season, though this fact was not definitely known. 



During the past season the writer has witnessed the development 

 of a shoot from a tree of the same species cited by Dr. Wells which 

 surpasses in its dimensions the one above referred to. This shoot 

 grew during this past season to a height of 21}^ feet. It has a circum- 

 ference at base of 10 inches and has 24 internodes. One of the leaves, 

 measured in the latter part of July, was 38 inches in largest dimension. 

 This shoot grew in a clay-loam soil, residual from granite, on property 

 adjoining the Campus, in Chapel Hill. 



The following papers were read but no copies or abstracts fur- 

 nished: 



