of the component parts of the Blood. 7 
the lymphatic and red globules to their origin. The pyloric 
portion of the stomach, and the duodenum, are filled with 
a glary mucus. Mr. Bauer found in this mucus a great num- 
ber of lymph globules and a smaller number of red globules 
without colour, so that such globules appear to be produced 
in the earliest stage of digestion. 
In the human species the produce of the process of diges- 
tion becomes white, and therefore is readily distinguished 
from any other fluids ; in general it is first met with in this 
state in the beginning of the jejunum, but sometimes in the 
whole course of the duodenum ; the readiness with which 
this substance is absorbed, and the velocity with which it is 
carried along the lacteal vessels, make it difficult to procure 
enough for examination till it reaches the glands in the mesen- 
tery, through which it must pass before it arrives at the 
thoracic duct. 
An opportunity occurred of making this examination upon 
the contents of the mesenteric glands, of a man who died in 
a fit an hour after having eaten his dinner. Mr. Bauer having 
extricated some of the glands of the mesentery from the sur- 
rounding fat and cellular membrane, divided them trans- 
versely, when a quantity of milk-white fluid issued out. On 
examination, the white colour was found to depend upon an 
infinity of white globules floating in a clear, perfectly colour- 
less fluid, in the same manner as the red globules do in the se- 
rum. About eight-tenths of these globules varied in size from 
the smallest speck to the size of the lymph globules, about 
one-tenth were of the size of red globules deprived of the 
colouring matter, and about one-twentieth were of the size of 
the red globules enclosed in their colouring matter. When 
