Berkeley: University of California Press, Adolf Grünbaum's copy, with ownership signature on flyleaf over a taped in "Compliments of the Author" card. 1949. Second edition. Hardcover, 8vo. in red cloth, no dust jacket. 492pp. with toned article on Reichenbach taped in on front pastedown. Very good. Lacks dust jacket. Wear to spine ends, boards rubbed. Offsetting from articles on flyleaf, Grünbaum's penciling and notes to a few pages and frontis, else internally unmarked. Very Good.