Softcover, Washington, D.C. The National Research Council of the National Academy of Sciences, 1929. Fair with no dust jacket.
Binding sound. Text clean, lightly tanned, with a small, light moisture stain running through at tip of top corner (doesn't affect text). Wrappers worn but still solid and intact, with chipping at spine ends; light to moderate exterior soiling. Illustrated with charts and graphs. ; A report of the Subcommittee on Molecular Physics (the physical properties of molecular arrangements), of the National Research Council. 9.75" tall; 293 pages.