3 preliminary leaves, 135 pages : diagrams ; 21 cm
OCLC
ocm00669944
"The first edition of this book, published in 1922 ... consisted of the text of Mr. Einstein's Stafford Little lectures, delivered in May 1921 at Princeton University. For this second edition, Mr. Einstein has added an appendix discussing certain advances in the theory of relativity since 1921."
"The text of the first edition was translated by Edwin Plimpton Adams, the new appendix by Ernst G. Straus."