California Institute of Technology (Rock slices), 1952.
Caption slip reads: "Sunday or Monday story. Photographer: Hecht. Date: 1952-05-08. Reporter: White. Assignment: Rock slices -- California Institute of Technology. 10: This is how a piece of rock 1/1000th of an inch thick looks through a microscope. 126/127: Rudolph H. Von Huene, research assistant putting final grind on slice of rock 1/1000 of an inch thick. 124/125: Pictures show size of Feldspar and Quartz rock from which the 1/1000 inch specimen came from".