Leipzig and Berlin: B.G. Teubner, 1915. 8vo. [iv], 89,  pp. With frontispiece portrait of Minkowski and text figures. Boards, spine and corners frayed and cracking. Item #14657
Sammelband containing the original papers on the special and general theories of relativity with a foreword by O. Blumenthal. It is in Minkowski's famous paper, Raum und Zeit (Space and time), that he proposes the concept of time as the fourth dimension and initiates a mathematical study that became the basis of the later development of the theory. Included here is the re-issue of that work by Einstein and Lorentz, with notes by A. Sommerfeld, published after Minkowski's untimely death, along with other papers by the two scientists whose works led to the abandonment of space and time as separate entities.
Weil, 59; see Printing & the Mind of Man, 401.