EINSTEIN, Albert (1879-1955). "Die Grundlage der allgemeinen Relativitätstheorie" [in] Annalen der Physik, 4th series, volume 49, Leipzig: Johann Ambrosius Barth, 1916, 8° (218 x 140mm.), contemporary half calf and cloth (scuffed). [Horblit 26c; Norman 695: "the authorised version of Einstein's general theory of relativity. The theory's impact upon twentieth-century science and thought can hardly be overstated"; PMM 408; Weil 80]