REVIEW. 
692 
also the purpose of a support to the column of the limb, while it 
furnishes points of attachment to the longest tendons, with the 
advantage of leverage in their action. 
For facility of description and precision of language, we 
recognise in the bone, three surfaces, three borders , and two 
extremities .” 
These all, separately, receive minute and faithful descrip- 
tions. Under the heading of faces or surfaces we have the 
pantilobe eminences , or paniilobee of Bracy Clark described; 
while the parts which we denominate the alee of the bone are 
named the basilary processes. 
Quitting the “osseous apparatus,” and stepping over, without 
further notice than the passing remark that each successive 
subject is treated on the same principle of systematic division 
and scrupulous attention to minutiae as we have endeavoured to 
shew in the short extract we have just made has been the case 
with the coffin-bone, we come to, as next most worthy of our 
attention, an account of the laminae. 
“ The number of laminae varies from 550 to 600, inclusive of 
those continued upon the sole. The extent of surface occupied 
by them, supposing them unfolded and spread out upon a plane, 
amounts to six or seven times that of the exterior superfices of 
the cylinder of the foot. This calculation makes them less than 
that of Bracy Clark, who reckons the podophyllae unfolded and 
spread out would extend over a surface twelve times the size 
of the one they occupy in the state of laminae. But, in our 
opinion, the English veterinarian has magnified his results of 
calculation. 
“ Notwithstanding this difference of opinion, it admits of 
sufficient approximation to convey an idea of the perfection in 
the horse’s foot of the faculty of touch, of which this vast podo- 
phyllous membrane is one of the principal seats.” 
We have now arrived at the “ Structure of the podophyllous 
tissue .” 
“ The podophyllous tissue consists of a thin, but extremely 
resistant and tenacious membrane, possessing a degree of elas- 
ticity in the longitudinal direction of its laminae. Bracy Clark 
is mistaken in supposing it to be cartilaginous. It has a thin 
fibrous base, something like fine well-knit canvass, which bears 
the same relation to it that the fibrous corium of the skin does to 
the entire structure. It is upon the surface and within the 
