Berlin, Springer, 1927. Uncut in orig. printed wrappers. 49,(1) pp.
First edition. - When Hevesy together with Dirk Coster began the radiographic examination of Zirconium ores, and were able to demonstrate in them the line of an unknown element, which they then isolated chemically in the form of a flouride. They named it after the Latin name of Copenhagen.(DSB VI: 366) - Hevesy was awarded the Nobel Prize in 1943 in chemistry.
Copenhagen, Høst & Søn, 1925. Uncut in orig. printed wrappers. 149 pp., 2 plates.
First edition. (Det Kgl. Danske Videnskabernes Selskab).
Berlin, Springer, 1927. Uncut in orig. printed wrappers. Wrappers loose. VIII,140 pp. Bckstrip with tears.
First edition.