First published . . . . . . 1923 Second impression. . . . . . 1923 Third impression . . . . . . 1923 Fourth impression. . . . . . 1923 Fifth impression . . . . . . 1924 Sixth impression . . . . . . 1924 Seventh impression . . . . . 1924 Eighth impression. . . . . . 1925 Ninth impression (Popular Edition) . . 1926 Tenth impression (Popular Edition) . . 1926 New Edition, revised and reset . . . 1928 Twelfth edition . . . . . . 1929 Thirteenth impression (Essex Library) . 1931 Fourteenth impression . . . . 1933 Published in Penguin Books . . . . 1935
Made and printed in Great Britain at the Athenæum Printing Works, Redhill Surrey