158 
HISTOLOGY OF ANIMALS. 
vascular portion being covered with epithelium. One 
of the villi, with its looped vessels, is represented in 
Fig. 122, c, and a few of the loops more highly mag- 
nified in Fig. 122. e; the scales of epithelium upon 
the basement membrane extending beyond the vessels 
are shown at d. 
FIG. 122. 
Vessels of synovial membrane: villi from joint of middle finger; b, 
looped vessels from flexor tendon of leg of an Ostrich ; c, villus from head 
of metacarpal bone ; d, epithelium of synovial membrane in advance of the 
vessels ; e, loops of synovial vessels magnified 500 diameters. 
Whilst on the subject of synovial vessels, I will 
take, the opportunity of demonstrating those accom- 
panying the ligamentum teres from its origin to its 
insertion ; and it may not be out of place here to 
mention the fact, that some few animals, as the 
