84 HOEir TUBES. 



strange as the statement may appear, stands and travels upon 

 thousands of cylinders, all arranged with extreme regularity 

 and held together by a common glutinous medium, constitutiag 

 in a great measure the peculiar pigment which gives colour to 

 the hoof. Attached to the lower border (ground border) of the 

 crust, is the sole which, like the hoof, consists also of cylinders. 

 This may be readily demonstrated upon a living animal. If the 

 reader will take the trouble to raise the foot of a horse, and 

 free the sole from dirt by washing it, he may easily perceive by 

 the aid of a common pocket magnifier the innumerable pores of 

 which the sole is composed.* 



Fig. 10. 



A Perpendicular Section of the Hoof of the Horse, shewing the Cwonary 

 CoTicavity, the Homy La/mince, the Tvhula/r Structure of the Sole, aiid 

 the open mowths of the Horn Tubes or Pores of the Sole. 



aaa The Coronary Concavity. dd The Horn Tubes of the inner 



66 The LaminEe. 

 <■■ The Crust. 



surface of the Frog and Sole. 

 e e The Crust. 



In illustration of this, Kgure 10 afibrds a view of the hoof 

 divided perpendicularly : the commencement of the horn tubes 

 within the coronary concavity, together with the laminae and 

 the horn tubes of the sole, are all exactly delineated according 

 to their natural positions. 



* I strongly recomioend every gentleman who may he fond of horses to 

 procure a hoof. 



