Many different kinds of locomotives, trains and special cars are all shown in action. You can see the different jobs engineers, brakemen and signalmen do. Colorful pictures show railroading realistically and in full detail. _ILLUSTRATED BY DAVID LYLE MILLARD_ MACHINES AT WORK Machines that dig, hammer, push--in non-technical language, the author explains the fascinating things they do, how they work and something about the men who run them. Full-color pictures show each machine in action. _ILLUSTRATED BY LASZLO ROTH_ ALL BY MARY ELTING GARDEN CITY BOOKS--GARDEN CITY--NEW YORK End of the Project Gutenberg EBook of Machines at Work, by Mary Elting Folsom