EXPLANATION OF FIGURE IV. 



NO. 1. — OSSEOUS STRUCTURE. 



OFF-HIND EXTREMITY. 



22. Femur or thigh bone. , 



23. Patella. 



24. Tibia. 



25. Os calcis. 



26. Astragalus. 



27. One of the tarsal bones. 



28. Metatarsus magnum. 



29. The sessamoids. 



30. Os sufiraginis. 



31. Os corona. 



32. Os pedis. ' 

 e. The fibula. 



The above explanation will answer for "No. 3," of this plate. 



NO. 2. — MUSCULAR STRUCTURE. 



SIDE VIEW OF THE OFF-HIND EXTREMITY. 



j. Triceps. 



n. Rectus. 



o'. Vastus. 



r. s\ Gastrocnemi, and perforans. 



V. V. Flexor pedis accessorius. 



u'. (At the hock.) The insertion of the gastrocnemius into the point of the hock. 



x'. Extensor pedis. 



y. y\ Peroneus. 



V. (Beneath the pastern.) Flexor perforatus and perforans. 



z. Bifui-cation of the suspensory ligament. 



Sr. The hoof. 



8. One tendon of the suspensory ligaments. 



NO. 4. MUSCULAR STRUCTURE. 



ANTERIOR VIEW OF THE OFF HIND EXTREMITY. 



n. Rectus. 



o'. Vastus extemus. 



J. Triceps abductor tibialis. 



y. y\ Peroneus. 



x'. x\ Extensor pedis. 



g. Flexor pedis accessorius. 



8. Bifurcation of the suspensbry ligament. 



5. Saphena vein. 



^. The hoof. 



