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SAVAGE SUDAN 
spicuous black blotches both on fore-quarters and flanks, 
as well as by a bold black “blaze” on the face. This strik¬ 
ing’ colour-scheme is, moreover, accentuated by iridescent 
effects, the whole being “shot” with lustrous reflections 
of purple, mauve, and violet, that gleam and glance with 
the play of light. Of the four, the southernmost (the 
sassaby, which I shot in the Transvaal) is certainly the 
Heads of ( A ) Tiang .... (i?) Jackson’s Hartebeest. 
most exquisitely gifted, the sheen on its flanks resembling 
the bloom of a ripe grape. Similar effects are visible, 
though in somewhat minor degree, on the tiang; while the 
korrigum responds to its desert environment by eschewing 
such adornments altogether. 
The main stronghold of tiang is on White Nile; 
but it extends eastward to Blue Nile and Dinder, being 
replaced beyond the latter river (on Atbara, Settite, 
and Rahad rivers) by the Tora hartebeest. The first 
desideratum of the tiang is good firm dry ground— 
swamp or Sudd he abhors and never enters. Given 
this essential condition, the tiang is ubiquitous throughout 
