Harvard College Observatory: Harlow Shapley memorandum, Climax coronagraph brochure, 1951

This file contains a copy of the Seventeenth Informal Memorandum from Harlow Shapley, of the Harvard College Observatory, and a brochure by Donald H. Menzel titled "The Sun and Solar Studies," about the coronagraph to be installed at the Climax Station. The brochure includes black-and-white photographs and diagrams.