Title: Hydraulics Conference, Iowa City, IA
Date: 1942-06-02
Original Format: photograph: print
Description: Includes: Hans A. Einstein (son of Albert), 4th row, 7th from right; Robert Knapp, top row, 5th from right. Complete key on back of photo. From the estate of Pearl Knapp. Miscellaneous Groups
Collection: Photograph Collection
Series/File: History of Science
Caltech Archives ID: 50.9.2-1
