Berlin, Julius Springer, 1924. Uncut in orig. printed wrappers. Small tears to backstrip, no loss. Old owners name and a small spot on frontwrapper. VI,110 pp. textillustr.
First German edition. Here Tullio Levi-Citta introduced the idea which made it possible to discuss whether a vector moves on a curve in space without changing its direction and as such, an idea which speedily found its way into general relativity.
Order-nr.: 40231