1960, 2nd Edition, 1960. First published 1950. New York, Russell & Russell. Near fine copy in the original gilt-blocked cloth. Slightest suggestion only of dust-dulling to the spine bands and panel edges. Remains particularly well-preserved overall; tight, bright, clean and strong. ; 705 pages; Description: xxiv, 705 p. 25 cm.....
1960, Off Print Edition. London: Printed and Published by the Twentieth Century Press. Very good copy in bound in cloth. Panel edges somewhat dulled and dust-toned as with age. Corners sharp with an overall tight, bright and clean impression. Copy from the library of Prof. J. Walker with his signature.....
1919, First Edition. Leipzig : Teubner. Near fine copy in the original title-blocked pictorial cloth. Slightest suggestion only of dust-dulling to the spine bands and panel edges. Remains particularly well-preserved overall; tight, bright, clean and strong. Series; Aus Natur und Geisteswelt, Bd. 715. Physical description; 122 p. : ill. ;.....