Olaus, a learned Swedish physician, born of an ancient and noble family in 1630. He became professor of medicine at Upsal, where he acquired great applause by his extensive knowledge; and died in 1702. His principal works are 1. Exercitatio anatomica, exhibens ductus novos hepaticos aquosos, et visum glandularum serosis, in 4to. He there asserts his claim to the discovery of the lymphatic vessels, against the pretensions of Thomas Bartholin. 2. Athlantica, sive Manheim, vera Japhethi posterorum sedes ac patria, 4 vols. folio, is full of strange paradoxes supported with profound learning: he there endeavours to prove, that Sweden was the country whence all the ancient Pagan divinities and our first parents were derived; and that the Germans, English, French, Danes, Greeks, and Romans, with all other nations, originally came from thence.

RULBECKIA, a genus of plants belonging to the syngenesia class; and in the natural method ranking under the 49th order, Compositae. See Botany Index.