TABLE OF CONTENTS. 



Introduction on units of measurement and conversion factors 

 Units of measurement : general discussion .... 

 Dimension formulae for dynamic units 



" " " heat units 



" of electric and magnetic units •• general discussion 



" formulae in electrostatic system .... 



" " " electromagnetic system 



Practical units of electricity, legalization of . 



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xvii 

 xvii 

 xix 



XXV 



xxvii 



xxviii 



xxxi 



XXXV 



TABLE 

 I. 



4- 



5- 

 6. 



7- 

 8. 



9- 



ID. 

 II. 

 12. 



13- 

 14. 



15- 

 16. 



i7. 



Formulae for conversion factors : (a) Fundamental units ... 2 



(i>) Derived units ... 2 



I. Geometric and dynamic units 2 



II. Heat units .... 3 



III. Magnetic and electric units 3 

 Tables for converting U. S. weights and measures : 



(i) Customary to metric ........ 5 



(2) Metric to customary ........ 6 



Equivalents of metric and British imperial weights and measures : 



(i) Metric to imperial . 7 



(2) Multiples, metric to imperial 8 



(3) Imperial to metric ........ g 



(4) Multiples, imperial to metric . . . . . .10 



Volume of a glass vessel from weight of its volume of water or mercury 1 1 



Derivatives and integrals 12 



Series 13 



Mathematical constants .14 



Reciprocals, squares, cubes and square roots of nattiral numbers . 15 



Logarithms, 1000-2000 ......... 24 



Logarithms 26 



Antilogarithms 28 



Antilogarithms, .9000-1.0000 ........ 30 



Circular (trigonometric) functions, argument (°, '•) . . . -32 

 " " " argument (radians) . . -37 



Logarithmic factorials, n!, n = i to 100 40 



Hyperbolic functions 41 



Factorials, 1-20 47 



