The Beatrix Antelope, (_Oryx beatrix_), of the Arabian Desert, is one of the rarest antelopes to be found in captivity, and at this date this interesting species is represented by a fine pair of specimens. The longest horns of record measure 26 inches. Very few sportsmen have seen this animal in its native haunts. Our pair has been breeding for three years, and has reared two young. The Sable Antelope, (_Hippotragus niger_), is by many persons regarded as the handsomest of all the numerous species of African antelopes. In appearance it is very proud and high-headed; it has imposing horns that sweep backward in a semicircular curve; its large eyes and alert air betoken keen intelligence, and its glossy black coat, marked with pure white, render it a most conspicuous animal. On its native veldt it has now become a very rare species, and seldom is taken by sportsmen. The fine male specimen in the Park was presented by Miss Jean Walker Simpson. [Illustration: LEUCORYX ANTELOPE] [Illustration: WHITE-TAILED GNU] The Sing-Sing Waterbuck, (_Cobus unctuosus_), is a creature of the lowlands, and frequents the dense tangles of tall reeds that border many of the rivers of West Africa, above the great equatorial forest. In captivity it sometimes is one of the most insanely nervous and irrational creatures imaginable, ever seeking self-inflicted injuries. The Blessbok, (_Damaliscus albifrons_), is a small but handsome purple-and-white antelope which is now very nearly extinct. Formerly a number of herds were preserved on fenced farms in the Transvaal and Orange Free State, but it is feared that none of them survived the Boer War. This species never lived north of the Limpopo, but south of that river it once was so numerous that a truthful traveler described a vast plain as being “purple with Blessbok.” The Nilgai, (_Portax tragocamelus_), is the largest of the Indian antelopes, and while it has the stature and the high shoulders of a Baker roan antelope, its absurdly small horns give it, beside the large antelopes of Africa, a very commonplace and unfinished appearance. The males and females are as differently colored as if they belonged to different species. This animal inhabits the roughest portions of the central plains of Hindustan, from Mysore to the Himalayas. In northern India it is found along the rivers Jumna and Ganges, in rugged and barren tracts of ravines which in character and origin resemble our western “bad-lands.” [Illustration: ELAND] The small antelopes will be found in the Small-Deer House, the next building in order. THE SMALL-DEER HOUSE, No. 49. In captivity the small and delicate species of deer, antelopes and gazelles are better cared for in enclosures that are not too large. For such creatures, freedom in a large enclosure usually means early death from accident or exposure.