SEROUS CANALS. 



317 



tion to the membrane of Descemet. From the consideration of this 

 one point, the doubt which he has expressed could be overthrown, 

 and the proposition above advanced be also maintained in regard to 

 the silvered markings of connective tissue. 



The serous canals represent spaces which are continuous 

 with the lymphatic vessels, and it may even be said that they 



Fig. 58. 



Fig. 58. Central tendon of the diaphragm of a Rabbit treated with 

 silver, , lymphatic capillaries with epithelium ; b, commencement of 

 the same; c, serous canals; d, transition of serous canals into lymphatic 

 vessels most abundant at the border D. Magnified 300 diameters. 



constitute the roots, so frequently sought after, of the lymphatics. 

 As a proof of this, the following facts may be adduced : 1. In 



A A 2 



