462 



WILLIAM A. LOCY AND OLOF LARSELL 



Pul.Vn 



Ht.-A. 



12 



\ ) 



Fig. 11 Dissection of the lung territory of an injected specimen near the 

 close of the fifth day of development, showing network of blood vessels on the 

 anterior dorsal area of the lung, also the opening of the pulmonary vein into the 

 left atrium. 



Fig. 12 Dissection of the left side of an injected embryo of 5^ days incubation. 

 Increase in size of lung and of pu'monary artery is evident. Projecting ven- 

 trally from the pulmonary artery just above the heart is a small blood vessel 

 which anastomoses through a capillary network with the laryngo-tracheal vein 

 as shown in figure 14. Modified from a sketch by G. H. A. Rech. 



Fig. 13 Dissection of the left side of an injected embryo of the last half of 

 the sixth day of development. Projections on the lung, pulmonary artery and 

 pulmonary vein shown. Drawn by G. TT. A. Rech. 



