American Physical Society 1952. 2 volumes COMPLETE. Volume 1 is the Author Index. Volume 2 is the Subject index. The Indexes cover the Physical Review from 1921 to 1950, volumes 17-80. Original brown cloth with faded lettering on the spine. Binding sound, good reference copies. Title: The Physical Review Index 1921-1950 Volume 17-80 SUBJECT AND AUTHOR INDEX, 2 Volumes Complete. Near Fine. Cloth.