CONTENTS 



CHAPTER I 



MEASUREMENT OF QUANTITY OF MATTER 



PJIGB 



1. To find equal quantities of matter 1 



2. To compare two quantities of matter ...... 2 



3. To test the accuracy of a set of weights by the balance . . 3 



4. To investigate the construction of an accurate balance . . 3 

 Additional exercises and questions . . . . .4 



5. Measurement of length and volume 5 



Additional exercises and questions ...... 6 



6. Relative quantities of matter in equal volumes of different 



substances .7 



Additional exercises and questions 8 



7. Principles of systematic measurement ..... 8 



8. Table showing relation of areas to linear dimensions . . .12 



9. Table showing relation of areas to one another . . . .13 



10. Table showing relation of volumes to linear dimensions . .13 



11. Table showing relation of volumes to one another . . .13 



12. Method of measuring very small quantities of matter . . 14 



13. Methods of measuring very small distances. The vernier . .14 



14. The micrometer screw, and spherometer 15 



15. Other methods of measuring density and table of densities . 16 

 Additional exercises and questions 18 



CHAPTER II 



OBSERVATIONS OF CHANGE OF POSITION 



16. Relative position 19 



17. Means of defining position with regard to a fixed point . . 20 



18. Observation of change of position 21 



19. Further observations of position and displacement . . .22 



