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most wary and difficult of approach, one old ram usually standing on guard 
while the remainderfeed. On the least sign of danger, the sentry immediately 
decamps among the rocky boulders, being instantly followed by the whole 
herd, springing from rock to rock with great activity. Driving is the best 
plan to adopt when hunting this species, the guns taking up a position in 
some narrow valley through which the Rhébuck are bound to pass on being 
driven by natives and dogs from one range of hills to another. It is worthy 
of remark that at certain portions of the year the entire body of this animal 
Fig. 44. 
A Pa s A y, 
ed a pg Pole fe. it, 
Pol tc, bons si 
LOGS ee) : 
wAMy Pk ater 
Head of Vaal Rhébok, 3. 
is often found to be burrowed with a large sort of warble, and consequently 
the flesh, at such times, is unfit for food, in addition to which it decomposes 
with great rapidity.” 
In the Transvaal it appears, from what Dr. Percy Rendall tells us (see 
P. Z. 8. 1895, p. 560), under present circumstances, to be growing rather 
