Front matter
Reading edition
In certain versions of this etext [in certain browsers] clicking on the image will bring up a larger version. Index: a, b, c, d, e, f, g, h, j, l, m, n, o, p, r, s, t, v, w. (etext transcriber's note)
Copyright 1953 by Duenewald Printing Corporation. Lithographed in the United States of America.
MACHINES AT WORK
ILLUSTRATED BY LASZLO ROTH GARDEN CITY BOOKS GARDEN CITY, N. Y.
