364 



THE EXTERIOR OF THE HORSE. 



The distance FI, comprised between the two maxillary spines, is 18 centimetres. 

 It is of the same value as : 



00, distance from one internal angle of the eye to the other (G. and B.). 

 FE, distance from the maxillary spine to the superior commissure of the correspond- 

 ing nostril (G. and B.). 

 FP, from the maxillary spine to the supra-orbit (G. and B.). 

 From the auditory hiatus, G, to the tip of the ear, approximate length of this latter 



organ (G. and B.). 

 And PQ, from the supra-orbit to the insertion of the ear upon the poll (G. and B.). 

 From the poll to the internal angle of the eye, CO, the distance is equal to that from this 

 last "point to the commissure of the lips, OT, and from the maxillary spine to the superior lips, 

 FS (G. and B.). 



The separation, TT, of the two commissures of the lips is almost the distance from the 

 superior border of the orbital arch to the base of the ear or to the auditory hiatus. 



In a state of rest, the external limit of the separation of the nostrils does not exceed the 

 Width of the knee ; the same distance often exists between the base of the ears, in quietude, 

 over the region of the poll. We have intentionally represented in the figure the latter directed 

 in different directions, in order to show that when the external part of the ear is turned back- 



FiG. 130.— Comparative proportions of the man and the horse. 



ward, it none the less preserves its accolade form, more or less marked according to the fineness 

 of the subject, and characterizing at rest the internal curve of the ear. 



The limit, MN, of the lips exceeds very little that of the nostrils ; in many heads displaying 

 harmonious proportions, this distance is one-half of AB. 



