PLATE VII. 



(From a preparation in Mr. Goodwin's Museum.) 



Fio-. 1, The Navicular Joint is here represented as exposed, after the manner 

 recommended at page 168, by sawing through the quarters of the hoof, and 

 carrying the incisions obliquely inward, following the course of the commis- 

 sures, until they meet at, or a little posterior to, the point of the frog ; which 

 effected with the saw, the section is isolated with a strong scalpel, and afterwards 

 turned back : as is represented by a a. 

 bb Is the flexor tendon in such a state of ulceration that the navicular bone (c) is 



seen through its ragged and lacerated borders, 

 c Is the navicular bone, with its under surface exposed, in a state of acute inflam- 

 mation and ulceration. 



Fig. 2 Is the navicular bone of the same foot after it had been macerated and dried. 

 Its upper or articulatory surface is here presented to view, shewing that an 

 oblique fracture (e e) had taken place in it. 



