44 THE PENYCUIK EXPERIMENTS. 



faint stripes began to show themselves, and in a day or 

 two the stripes, though indistinct, were seen to closely 

 agree in their arrangement with those of the other hybrids. 

 Now that the '' Clydesdale " hybrid is nearly seven months 

 old, she at a little distance might easily be mistaken for 

 an ordinary foal. Compared with Remus the head is 

 shorter and finer, while the joints are larger and the 

 shanks thicker. At six months the circumference at the 

 knee Avas ten and a quarter inches, and below the knee 

 six and one eighth inches — almost exactly the same as in 

 Romulus when seventeen months old. The mane, at first 

 nearly upright, short and zebra-like, is now made up of 

 hairs from eight to ten inches in length (nearly as long as 

 in an ordinary foal of the same age). Except near the 

 withers and between the ears the mane arches freely to 

 the right side, some of the hairs almost touching the neck. 

 The hair between the ears already projects forwards to 

 form a forelock. In Remus, as already mentioned, the 

 mane is still upright, and shorter than in his sire. The 

 tail in Brenda has also from the first been heavier than in 

 any other of the hybrids, and fewer hairs have been shed 

 from its base ; farther, almost from the first there have 

 been a few hairs at the fetlock-joints. The hairs around 

 the small ergots are now over two inches in length. 



The chestnuts on the fore-legs in the zebra are large 

 and smooth, and on a level with the skin ; in Romulus 

 and Remus they are also large, and hardly if at all above 

 the level of the skin, but they occasionally give off thin 

 scales. In Brenda the front chestnuts, though relatively 

 nearly as large as in a zebra, project nearly as far above 

 the level of the skin as in a pure Clydesdale foal. The 

 left hind leg carries a small prominent chestnut about a 

 quarter of an inch in diameter, but there is no rudiment of 

 a chestnut on the right hind leg. The hoofs are the hoofs 

 of a zebra, and considerably smaller than would be the 

 hoofs of a Clydesdale foal of the same age. They are 

 wide behind and rounded in front, but the bars are rela- 

 tively short, i.e. they do not extend as far back as the 



