Lancaster, American Physical Society, 1950. Lex8vo. Entire volume offered in the original blue wrappers with previous owner´s stamps. In ""The Physical Review"" Volume 78, May 1, No. 3, 1950 of , Second Series. A fine and clean copy. Pp. 275-290. [Entire volume: Pp. 189-357].
First printing of the classical paper in which the The Shockley Partial Dislocation was described for the first time.