- JAMES LEFFEL & COMPANY CATALOGUE, CIRCA 1897.
- The James Leffel & Company's factory history.
- Elmer Woodward's vertical compensating type governor connected to a Victor turbine.
- 475
- A schematic drawing of a Woodward compensating type water wheel governor.
- THE WATER WHEEL GOVERNOR
- X
- ix
- vii
- PREFACE TO THE FIRST EDITION.
- vi
- PREFACE TO THE SECOND EDITION.
- BY AUTHOR DANIEL MEAD,CIRCA 1915.
- WATER POWER ENGINEERING HISTORY
- WATER POWER ENGINEERING HISTORY