OF VESSELS OF VILLI. 



attacks generally prove fatal. The obstructed vessels 

 of the villi are represented in Plate XXI, figs. 79 to 

 86, under a low magnifying power. The villi them- 

 selves are much smaller than in health, and some are 

 completely disorganised (Fig. 84). Lieberkuhn's fol- 

 licles are also seen to be shrunken, short, and wasted, 

 and some have completely degenerated (Fig. 86). In 

 Fig. 85 the narrow openings of wasted follicles are 

 represented. These are very much smaller, and are 

 separated from one another by a much greater dis- 

 tance than in health. Many of the vessels represented 

 in these drawings are so changed and disorganised, 

 that it is impossible they could ever again have trans- 

 mitted blood. Had the patient recovered, many of 

 the villi figured would have disappeared. 



The capillaries in many of the villi have wasted in 

 a manner and to an extent which is very remarkable. 

 A specimen has been represented in PI. XXI, fig. 82, 

 which shows the alterations very distinctly, although 

 they have not yet proceeded to an extreme degree. 

 In Pis. XXII, XXIII, a more advanced stage of disor- 

 ganisation, is represented. At the summit of the villus 

 in Figs. 87, 88, p. 186, many of the capillaries have 

 become reduced to mere lines, and the texture a short 

 distance from the surface has wasted ; indeed much of it 

 had completely disappeared. In the intervals between 

 the lines which mark the positions occupied by the 

 capillaries is a little indeterminate tissue, in which 

 several oil-globules are seen. 



O 2 



