Silurians. A dark, round-skulled, short race who inhabited South Wales and the neighbouring districts of England in Roman times. They were probably of Iberian stock, related to the ancient Picts and modern Basques.
Sindis. Natives of Sind in North-West India, of Hindu descent.
Singphos. A wild, daring hill-tribe of Tibetan stock bordering on the Assam valley, formerly given to raiding, but now peaceful agriculturists. The Chins of the Arakan uplands are probably an identical race; they are still predatory.
Sinhalese. See [DRAVIDIANS].
Siouan. A numerous and formerly powerful group of North American Indians, inhabiting the western prairies between the Mississippi and the Rocky Mountains. Their chief tribe was the Sioux or Dakotas, warriors of fine physique, courage, and military skill, who long maintained a successful resistance against the white settlers. Other allied tribes were the Assinaboins, Omahas, Poncas, Kaws, Osages, Quapaws, Iowas, Otoes, Missouris, Winnebagos, Mandans, Minnetarees, Absarakas or Crows, Tutelos, and Catawbas.
Sioux, or Dakotas. See [SIOUAN].
Siryanians. A tribe of Ugrian Finns, dwelling on both sides of the Northern Urals, resembling the [Samoyedes] (q.v.), except in their white colour and fair hair, probably due to a mixture of Slavonic blood. See [FINNO-UGRIAN].
Slavonic Races, Slavs or Slavonians. A main stock of the Aryan family, occupying the greater part of Eastern Europe, and formerly extending as far west as the Elbe. Many ethnologists consider them to be the primitive Aryan stock. They are a peaceful and industrious agricultural and pastoral race, broad-skulled, with fair hair and blue eyes; though the primitive type has been much modified by intermixture of blood, especially with Mongolic races, who have imprinted a Tartar character on many Slavonic physiognomies. The Slavs are divided into Eastern ([Russians] and [Ruthenians]), Western ([Czechs] and [Slovaks], [Poles] and [Wends] or Sorbs), and Southern ([Bulgarians], [Servians], and [Croats], [Dalmatians], [Slovenians], and [Montenegrins]). See under these heads.
Slovaks. See [CZECHS].
Slovenians. A branch of Southern Slavonic stock, inhabiting Styria, Carinthia, and adjoining districts.