Early English voyages to northern Russia : comprising the voyages of John Tradescant the Elder, Sir Hugh Willoughby, Richard Chancellor, Nelson, and others /

Published in 1843 under title: Tradescant der Aeltere 1618 in Russland.

Studien über die Hirnrinde des Menschen /

Translation of papers which first appeared in Ramon y Cajal's Revista trimestral micrográfica. Cf. Preface.

Das mathematische Raumproblem und die geometrischen Axiome.

Mode of access: Internet.