126 THE BLOOD. 



Elementary Corpuscles. Little granules are found in the 

 blood, especially during digestion, which, as they were 

 supposed to take part in the formation of the white corpuscles, 

 have been called elementary granules or corpuscles. They 

 are little fatty particles of the chyle which come from the 

 thoracic duct, and are not positively known to have any con- 

 nection with the formation of the other corpuscular elements 

 of the blood. 



