SPRINGER. 345 



•\vkich runs down part of the shoulders : tail 

 reaches to the first joint of the leg ; the upper 

 part is white, the lower black, and furnished with 

 long hair ; the under side a])pears nearly naked : 

 buttocks ^vhite ; and from tlie tail half ^\'ay up 

 the back is a stripe of hite, expansible at plea- 

 sure. 



'' This elegant species weighs about fifty pounds, 

 and is rather less than a Roebuck : inhabits the 

 Cape of Good Hope : called there the Sprh7g'' 

 Bocky from the prodigious leaps it takes on the 

 sight of any body. When alarmed it has the 

 j power of expanding the white space about the tail 

 into the form of a circle, which returns to its 

 linear form when the animal is tranquil. They 

 inigrate annually from the interior parts in small 

 herds, and continue in the neighbourhood of 

 the Cape for two or three months ; then join 

 companies, and go off in troops consisting of 

 many thousands, covering the great plains for 

 several hours in their passage. Are attended in 

 their migrations b}^ numbers of lions, hytienas, 

 and other wild beasts, which make great destruc- 

 tion among them. Are excellent eating, and, 

 with other Antelopes, are the venison of the Cape. 

 Mr. Masson informs us, that they also make pe- 

 riodical migrations, in seven or eight years, in 

 herds of many hundred thousands, from the north, 

 as lie supposes, from the interior parts of Terra de 

 Natal. They are compelled to it by the exces- 

 sive drought which happens in that region, when 

 sometimes there does not fall a drop of rain for 



