Chapter XXI: Appendix: (selected Data for Mining Men) (3)

Fourth Edition, Thoroughly Revised and Greatly Enlarged.
_With Numerous Illustrations. Price 10s. 6d_.

VALVES AND VALVE-GEARING:
A PRACTICAL TEXT-BOOK FOR THE USE OF
ENGINEERS, DRAUGHTSMEN, AND STUDENTS.

By CHARLES HURST, Practical Draughtsman.

PART I.--Steam Engine Valves.