VI 



CONTENTS. 



i6. Logarithms of 



£!+£! 



(hyperbolic cosines) for values of x from o to 5 42 



17- 



18. 

 19. 



20. 



21. 



22. 



23- 

 24. 



25. 

 26. 

 27. 



28. 



29. 

 3°- 

 31- 

 32. 



Values of e' and e~' and their logarithms for x from o to 10 

 " ** log. e' for values of x from 10 to 30 

 " " ^' and ^"""^^ and their logarithms .... 



n — IT 



" " ^^■'and^'* ■* u » » .... 



Vt — V" 



" «' ^^^and^"^"* " « . . . . 



" " ^ and e-"" and " " for fractional values of x 



Probability of errors of observations : probability integral . 



Values of 0.6745 ^^—[ 



34- 

 35- 

 36. 



37. 

 38. 



39- 

 40. 



41. 

 42. 



43- 

 44. 



45- 

 46. 



47- 



°-^745 V«(;^ 



(«-i) 



" 0.8453 a/ / ^ \ 

 " 0.8453 



n\/n — I 



Inverse of probability integral. Diffusion 



Logarithms of the gamma function V{n) for values of n between i and 2 



Values for the first seven zonal harmonics from ^=0° to ^:=9o° 



" " log. Mj^TT^Ja^ for facilitating the calculation of the mutual 



inductance between two coaxial circles 



33. Value for /^(i — sin^^sin^^)^M$ for different values of 6; also the 



corresponding logarithms 



Moments of inertia, radii of gyration, corresponding weights 

 British standard wire gauge : diameters, sections .... 

 Birmingham wire gauge " " . . . . 



(For Brown and Sharp gauge, see tables 40 and 41) 

 Cross section and weights of wires (copper, iron, brass), British units 

 .< « u « « « u u .< metric units 



" " " " " aluminum wire: British and metric units 



Size, weight and electrical constants of copper wire, Brown and Sharp 



gauge : common units 

 Same as table 40, but in metric measure 

 Weight in grammes per square metre of sheet metal 



" " various common units of sheet metal . 

 Strength of materials : {a) metals 

 {b) stones 

 {c) brick . 

 {(i) concretes 



" " " timber tests 



(( (( <( <( (( 



Moduli of rigidity . . . 



