LIST OF FIGURES,

FIG. PAGE

1. Diagram op Pressures at Contractton in a Pipe . . 12

2. Do. do. Enlargement do. . . 12

3. Do. do. Contraction do. Modified

to Allow por Friction.14

4. Reynold’s Experiment with Colour Band at Low Velocity 16

5. Do. at Critical Yelooity.16

6. Do. do. do. seen by Electric Spark . 16

7. Hydraulic Pipe Joint.19

8. Ball and Socket and Double Bight Angled Pipe Joints 20

9. Slide Yalve op Crane .21

10. Hydraulic Accumulator .34

11. Intensifying Accumulator .38

12. Anderton Canal Lift, Side Elevation.65

13. Do. do. Cross Section.66

14. Section op Trial Segment op Cast Iron Press with Steel

Hoops.'. . . 71

15. Plan op Lifts por Proposed Thames Subway ... 89

16. Hydraulic Waggon Drop .92

17. Section of 10 Discs op Lead porced through Die . . 94

18. Do. 4 do. do. . . 95

19. Do. 2 do. do. . . 95

20. Tweddell’s Fixed Hydraulic Rivetter, Side Elevation . 100

21. Do. do. do. End Elevation . 100

22. Do. do. do. Plan . . . 100

23. Do. do. do. Longitudinal section 101

24. Do. do. do. Back Elevation . 101

25. Do. do. do. Sectional Plan . 101