96 GUEXON EXPLAINED. 



of bad milking races, but are very rarely seen on the 

 best milch cows. They consist of one or two ovals, or 

 small bands of up-growing hair, and serve to indicate 

 the continuance of the flow of milk. The period is 

 short in proportion as the tufts are large. They must 

 not be confounded with the escutcheon proper, which 

 is often extended up to the vulva. They are separated 

 from it by bands of hair, more or less large, as in Figs. 

 40, 42, &c. 



The mirrors shown in Figs. 38 to 42, and 29 to 35, 

 &c, exist, more or less developed, on nearly all cows, 

 and indicate the quantity of milk, which will be in pro- 

 portion to their size. Sometimes they form only a 

 small plate on the posterior surface of the udder, as in 

 Fig. 49. In other cases they cover the udder, the inner 

 surface of the legs and the thighs, the perineum, and 

 a part of the buttocks, as in Figs. 29, 30, 31, &c. 



Two parts may be distinguished in the lower tufts : 

 one situated on the udder, the legs, and the thighs, as at 

 M M, Fig. 30 ; and the other on the perineum, extend- 

 ing sometimes more or less out upon the thighs, as at 

 P P, in the same figure. 



The first part is represented by itself, in Figs. 37 and 

 49. We shall call the former mammary, and the latter 

 perinean. The former is sometimes large, extending 

 over the milky glands, the thighs, and the legs, as shown 

 in Figs. 29 to 37; and sometimes circumscribed, or more 

 or less checked over with tufts of downward-growing 

 hair, as in Figs. 43 to 52. It is sometimes terminated 

 towards the upper part of the udder by a horizontal 

 line, straight, as in Fig. 37, or angular, as in Fig. 49 ; 

 but more frequently it continues without interruption 

 over the perineum, and constitutes the perinean part. 



This presents a large band, Fig. 30, straight, as in 

 Fig. 43, and bounded on the sides by two parallel lines, 



