Preface; 1. Experiments on Dr Barker's mills; 2. Experiments in the velocity of air out of bellows; 3. A description of Westgarth's hydraulic machine; 4. Some properties of the lever demonstrated; 5. Observations on the power of Cooper's mill; 6. On the power of a mill, formerly at Nuneaton; 7. On the horizontal water-wheel; 8. Description of the centrifugal machine; 9. On the properties of the crank, etc.; 10. Observations on lathes; 11. Observations on wheel carriages; 12. Demonstration of a parallel motion for engine beams; 13. Theorems relating to the common pump; 14. Rules and observations on the strength of oak and deal; 15. To find the weight which will break a beam of any given dimensions; 16. Of the strength and dimensions of steam engine beams; 17. To make a beam of a given strength, and the breadth and depth in a given ratio; 18. To find the expression for the strength of a beam to work a cylinder of any diameter; 19. To find the dimensions of the strongest beam that can be cut out of a given piece of round timber; 20. Experiments on the strength of cast iron; 21. To form parabolic beams; 22. On the strength of cast iron axles; 23. The strength of poles for triangles; 24. Observations on cranes; 25. To find the centre of gravity; 26. Description of a gauge for steam engines.