PLATE LYI. 



FIG. 124. Pleural side of centrum tendinenm of rabbit, pencilled and coloured in silver. I. Lymph capil- 

 laries, showing their endotLelium. The system of lymphatic canaliculi, c, stands out sharply from the dark 

 coloured ground-substance of the pleural serosa; in many places the lacunoe of the canalicular system are 

 separated from each other by mere lines, and a trace of nucleus s is to be seen; the placoid cell to which 

 the nucleus belongs is not visible. At t, the canalicular system ia passing ovtr Into eiidotheliuin of the 

 lymph capillaries, p. 114. (Oc., 3 ; Obj., 7. Tube half drawn out.) 



