The solution of a problem by arithmetic,

although in some cases more laborious than the

algebraic method, gives the better comprehension of

the subject.  Arithmetic is analysis and bears the

same relation to algebra that plane geometry does to

analytical geometry.  Its power is comparatively

limited, but it is exceedingly instructive in its treatment

of questions to which it applies.

_____

In the following work the problems of electrical

engineering and practical operations are investigated

on an arithmetical basis.  It is believed that such

treatment gives the work actual value in the analytical

sense, as it necessitates an explanation of each

problem, while the adaptability of arithmetic to

readers who do not care to use algebra will make

this volume more widely available.

_____

In electricity there is much debatable ground,

which has been as far as possible avoided.  Some

points seem quite outside of the scope of this book,

such as the introduction of the time-constant in

as determined by different authorities made

a selection embarassing.  It is believed that some

success has been attained in overcoming or compromising

difficulties such as those suggested.

_____

Enough tables have been introduced to fill the

limits of the subject as here treated.

_____

The full development of electrical laws involves

the higher mathematics.  One who would keep up

with the progress of the day in theory has a severe

course of study before him.  In practical work it is

believed that snch a volume as the Arithmetic of

Electricity will always have a place.  We hope that

it will be favorably received by our readers and that

their indulgence will give it a more extended field of

usefulness than it can pretend to deserve.

_____

Can you see something in electricity that has been

overlooked for over a hundred years?

_____

This could be the subject that could