Measurements of Double Stars, Publications of teh Yerkes Observatory, Volume VIII, Part VI.
Chicago: The University of Chicago Press, 1954. 4to. 223pp. Some wrinkling of spine, 1" closed tear on right side of spine tail end, tiny tears along top sine end, some shelf wear to top and bottom edges of cover, corners slightly bumped. Sewn binding in good condition, slighty shaken. Text is clean and unmarked. Data on 19 orbits for various stars gathered during 1945 at Williams Bay and the McDonald Observatory in Texas. Very Good Paperback (Item ID: 70294)