Here is SCIENTIFIC AMERICAN Magazine May 1976 Volume 234 No 5.
Issue is used, good condition, light edge wear and rubbing, no mailing label, previous owner's name written neatly in ink on top edge of cover, clean, complete, unmarked text, 132 pp. M131
COVER: Synchronous Fireflies - artwork by Tom Prentiss
FEATURES
A. S. Goldhaber and M. M. Nieto The mass of the photon
Dale P. Cruikshank and David Morrison The Galilean Satellites of Jupiter
J. S. Benjamin Mechanical alloying
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