170 Mr, Home’s Experiments on Fluids, &c. 
silver is made to pass through the branches of this gland, 
there is a trunk equally large on the opposite side, which 
makes an angle, and then terminates in the thoracic duct. This 
fact I ascertained at the Veterinary College, assisted by the 
Deputy Professor Mr. Sewell, and Mr. Clift. These lym- 
phatic vessels are equally large as the excretory ducts of any 
other glands, and therefore sufficient to carry off the secretion 
formed in the cells of the spleen ; and where a secretion is to 
be carried into the thoracic duct, it would be a deviation from 
the general plan of the animal economy, were any but lym- 
phatic vessels employed for that purpose. 
It is a strong circumstance in favour of the secretion being 
so conveyed, that in the last experiment, the lacteals and cells 
of the spleen were unusually turgid, being placed under simi- 
lar circumstances, the thoracic duct being so full as not to 
receive their contents. 
The purposes that are answered by such a secretion from 
the spleen into the thoracic duct cannot at present be ascer- 
tained. 
