SECRETING STRUCTURES OF 

 THE FOOT. 



♦ ♦ * 



i. The sebaceous glands of the skin, more numerous in, 

 and around the heels than elsewhere, for the purpose of keep- 

 ing those parts soft and supple that are subject to extension 

 during motion. 



2. The coronary villi, that secrete the fibrous portion of 

 the wall. 



3. The secretories of the frog-band. 



4. The laminal papillae, that secrete the non-fibrous portion 

 of the wall. 



5. The secretories of the white solar zone. 



6. The papillated membrane that secretes the horny frog. 



7. The papillated membrane that secretes the horny sole. 



8. The synovial' membranes that secrete synovia for the 

 purpose of lubricating the gliding surfaces of the joints. 



"AMPLE ROOM AND VERGE ENOUGH." 



The location and function of these Secreting Structures have 

 been sufficiently indicated in connection with a description of 

 the various substances they secrete. The following brief refer- 

 ence to the microscopic anatomy of these minute organisms, 

 will perhaps be sufficient to show the extreme delicacy of some 

 of the structures and processes that enter into the economy of 

 the foot of the horse, and to suggest the importance of there 

 being " ample room and verge enough " for the elaboration and 

 secretion of the horny textures. 



