FIG. 104. rart of the same preparation as flj?. 103. a. Endothelium of one of the surfaces. 6. An arteriole 

 branching into true capillaries d, which are continued into a capillary vein c. The eudotheliuiii is clearly shown in 

 all the vessel*. (Oc.,3; Ol.j., 7.) 



