Modern instruments and methods of calculation : a handbook of the Napier Tercentenary Exhibition (1914)
Horsburg, E. M. (Ellice Martin), Napier Tercentenary Exhibition (1914 : Edinburgh, Scotalnd) · London : G. Bell · leaf 206
ding a log-log scale in two sectionsE, F. F gives range i-i to 2-9, and E gives range 2-9 to 10,000. On thestock (beneath the slide) are two special scales, one for calculating efficiencyof dynamos, effective horse-power, etc., and the other for loss of potential,current strength, etc. In other… … ii|ll!|f|i.|Vii Fig. 23.
