§4- The Anatomy of a WOKS^. Chap. VI. 



but fmall and pointed at the lower ; between thefe do run 

 the Tendons of the Mufcles that move the P'oot. 



7hepreat Pa- ^^^ ^^"^^ '^ ^^^^ ^'^^^^ Paftem. This 



a^j.^ Bone is gibbous and crooked on its upper 



Part, where it is articulated with the Shank- 

 bone ; it has three fmall Proceiles, which are recei\'ed into 

 the Cavities of the faid Shank-bone ; and two Cavities, 

 which alfo receive its two Proceiles, and has alfo two 

 fmall triangular Bones faftened to its back Part, whereon 

 the Footlock Hair does grow ; thefe two Bones are a Stay 

 to that Joint, which Articulation, being like a Hinge^ 

 would be apt to llrain the Ligaments every Time a Horl'e 

 Ihould ftumble. 



Th I'ttl Pa- "^^^ ^^^^^^ Partem is not much unlike the 

 a^^^ other, only that it differs in its Length ; its 



upper End is articulated V/ith the great Pa- 

 llern, and its lower End confifts of two Heads, as that of 

 the great Paftern, which are received into the Coffin-bone, 

 in the fame Manner as itfelf receives the lower End of the 

 great Paftern. 



Th c M -b '^^^ Coffin-bone, which is the lowermofl 



•^" ' of all the Bones of the Leg, is fo called from 

 its Hollownefs. It is fomewhat femilunary, or half-moon 

 fafhion'd, thick upwards, where its Cavities receive the low- 

 er End of the little Paftern ; but thin and broad at its Bot- 

 tom towards its Edges, for its more firm Hxing upon the 

 Ground. Its Subftance is open and porous, having innume- 

 rable little Holes through its Sides, for the Paflage of the Vef- 

 fels ; as alfo many fmall Sinus's, wherein are inlerted the 

 Tendons of the Mufcles that move the lower Part of tht^ 

 Leg and Foot. 



§. VL Of the Croupe, and Rump-Bone. 

 -^ - The Croupe, or the Bone which lies un- 



crum or ^^^ ^^^ Crupper, olherwile called the Os 



Croupe. Sacrum, is feated at the lower End of the 



Back, and adheres to the laft Vertebra of 

 the Loins above, and below to the firft of the Bones of the 

 Du^, or Rump : It is much the broadeft of all the Bones 

 of the Back, of a Figure fomewhat triangular, growing, 

 from a broad Beginning, narrow towards the firft Bone of 

 the Tail j it is hollow on its Infide, but uneven outwards^ 

 becaufe of the Mufcles of the Back, and its Ligaments 

 cleaving to it. It has hardly any oblique Proceflcs but on 



