LIST OP ILLUSTRATIONS 



FIG. PAGE 



1. Scale showing inches and centimetres . . 5 



2. Measurement of length with scale of inches . 6 



3. Method of graduation and cross section of scale . 9 

 4 Measurement of curved lines . . . 14 



5. Inside and outside calipers ... . . ..... 17 



6. Method of using simple vernier . . . 19 



7. Comparison of square foot and square decimetre 22 



8. Areas of simple rectilinear figures . . ... 26 



9. Area of irregular figure by use of squared paper 29 



10. Relation of area of circle to square of radius ... 32 



11. Comparison of cubic inch with cubic centimetre 34 



12. Volume of rectangular parallelepiped , . 35 



13. Volume of rectangular slab . . . 36 



14. Triangular and hexagonal prisms . . . 37 



15. Right circular cylinder .... . . 37 



16. Graduated vessels for measurement of capacity 38 



17. Method of reading graduated vessels . . 40 



18. Spring-balance . . . . . . 46 



19. Apparatus for illustration of Principle of Moments 48 



20. Simple chemical balance r Y . . .' - 51 



21. Method of holding pipette . . . . -. 58 



22. Method of using burette . . . . 59 



23. Steelyard . . . . .' . . 60 



24. Density flasks . . . _, , . . 67 



25. Apparatus for determination of fluid pressure at 



different depths in a liquid . , - . 84 



