CONTENTS. 



NUMBERS AND MEASURES. 



TABLE PAGE 



1. Squares, Cubes, Square and Cube Roots, Multiples of TT, 



and Reciprocals from 2 to 99 1 



2. Trigonometrical Ratios 4 



3. Factorials and Powers of 2 from 2 to 12 5 



4. Logarithms of Factorials from 10 to 99 6 



f>. Mensuration 7 



6. Measures of Time 8 



7. Measures of Angles 8 



8. Relation between Time and Longitude 8 



9. Measures of Length (English and Metric) 8 



10. Measures of Area (English and Metric) 9 



11. Measures of Volume (English and Metric ) 10 



12. Measures of Mass (English and Metric) 11 



13. Less usual Measures 12 



14. Ancient Measures 12 



15. The Acceleration due to Gravity (</) 13 



16. Values of (g) in England compared to its value in Lati- 



tude 45 14 



17. Densities of Mixtures and Native Compounds .... 14 



18. Comparative Velocities 16 



19. Compressibility of Solids and Liquids 16 



20. Rigidity of Solids 16 



21. Elasticity and Tenacity of Solids 17 



22. Resistance of Solids to Crushing 18 



23. The Standard Wire-gauge 19 



24. Miscellaneous Data . 20 



