1955 vii, 360 p., 288 figures, 127 plates (depicting complete specimens), 4to, publisher’s cloth. Library stamps, else a very good copy.
1955 vii, 360 p., 288 figs, 127 pls, 4to, publisher’s cloth. Library stamp and ex libris (bookplate) of the John Crerar Library on rear front cover. Number pasted on spine.