William ^Sno\v JMiller 



449 



to inject (PI. I, Fig. 2). Each lateral branch of the pulinonarv vein 

 is accompanied by one or more lymph vessels, but the arrangement is not 

 as regular as that about the branches of the pulmonary artery (PI. II). 

 The branches of the pcri-venous lymph trunks anastomose freely with 

 the very irregular network of lymph vessels which is spread out between 

 the pulmonary artery and vein. This network is formed by anastomosing 

 vessels which connect the lymph vessels accompanying the lateral 

 branches of the artery and vein with each other. At the root of the 



Fig. 2. Transverse sections through the pulmonary artery and vein, show- 

 ing the position of the large lymph trunks (L. V.) and the attachment of the 

 peritoneal fold which is cut through when injecting the lymph vessels. X 40. 

 (From Bulletin of the University of Wisconsin, No. 33, 1900.) 



lungs the main peri-venous lymph trunks join a large lymph sinus which 

 is situated on the ventral side of the stomach in the angle formed by the 

 divergence of the lungs and through this with the network of lymph 

 vessels situated on the ventral side of the stomach (PI. I, Fig. 2). 



The lymph vessels of the lung of Necturus like those of Triton and 

 Salamandra (Suchard) are more superficially situated than the blooil 

 vessels. In transverse sections taken through the artery and vein, the 

 position of the large lymph trunks is easily made out even though the 



