Aether und Relativitätstheorie
Berlin: Springer, 1920. 15pp. 221 x 146 mm. Original printed wrappers, foxed. Minor internal foxing but very good. First edition? (cover title does not include the date Einstein delivered his lecture; see Weil). "By royal decree of June 24, 1920, a special chair in Leiden [University] was created for [Einstein]..... More