LYMPHATIC SYSTEM OF SKIN AND MUCOUS MEMBRANES, 899 
following a course very nearly parallel to the margin of the 
lid. They join everywhere the plexus of the lymphatics of 
the fornix. These latter appear as a plexus of fine vessels, 
situated superficially, and one of large deep vessels; most 
vessels of both plexuses follow a course more or less parallel 
to the margin of the lid, z. e. longitudinal towards the angle 
of the eye, as mentioned above. 
In horizontal and vertical sections through the eyelid the 
lymphatic vessels of the conjunctiva palpabre extend from 
near the epithelium through the whole thickness of the 
conjunctiva. 
The layer next the Meibomian glands contains large 
vessels (Colasanti) with valves, and these may be considered 
as the deep lymphatics. 
Fuchs also injected lymphatic sinuses around the alveoli 
of the Meibomian gland. . 
In the plexus of the superficial lymphatics of the fornix 
and also in that of the conjunctiva palpebre nearest the 
fornix, there are found some vessels possessed of valves and 
corresponding saccular dilatations, but most of them are 
without valves. 
Injecting in the same manner the conjunctiva of the rabbit 
it will be observed that in the conjunctiva palpebre the 
blood capillaries and veins often become injected. Viewed 
with a lens or under the microscope the deep lymphatics with 
valves are also well seen. 
The lymphatics of the conjunctiva fornicis come out with 
great distinctness, both those of the superficial parts as well 
as those of the depth. 
The above fact of the blood capillaries and veins becoming 
injected would lead one at once to say that the passage of the 
injection matter into the blood-vessels is due to an injury of 
the blood-vessels by the canula. But, on careful examina- 
tion, I failed to detect this; but, on the other hand, I have 
found what appears to be a direct anastomosis of minute 
veins with lymphatics.! This is, however, a point of so 
great an importance that, definitely to express an opinion, 
it would require a greater number of observations and a 
more minute examination than I have been able to make. 
I have good reason to believe that there exists an indirect 
communication between the blood-capillaries of the conjunc- 
tiva palpebrze of the rabbit and its lymphatics through the 
lymph-canalicular system (v. Recklinghausen). 
1 V. Recklinghausen observed a similar passage of the injection matter 
from the lymphatics into the blood vessels. Waldeyer considers it due to 
an artificial rupture, 
