- THE PELTON WATER WHEEL COMPANY ADVERTISEMENT FROM 1903.
- PELTON WATER WHEELS
- PELTON WATER WHEELS 1903.
- ABNER WATER WHEEL COMPANY
- ABNER DOBLE WATER WHEEL COMPANY.
- ABNER DOBLE WATER WHEEL COMPANY. 2.
- THE DESIGN OF TENGENTIAL WATER WHEELS, PAGE 1.
- THE DESIGN OF TENGENTIAL WATER WHEELS PAGE 2.
- THE DESIGN OF TENGENTIAL WATER WHEELS PAGE 3.
- THE DESIGN OF TENGENTIAL WATER WHEELS PAGE 4.
- TANGENTIAL WATER WHEEL EFFICIENCIES
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 2.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 3.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 4.
- TANGENTIAL WATER WHEEL EFFICIENCIES PAGE 5