the secondary--in other words, the size of the vessel--can be reduced
as far as desired, and the efficiency of the light conversion is
increased, provided that means are invented for efficiently obtaining
such high frequencies. Thus one is led, from theoretical and practical
considerations, to the use of high frequencies, and this means high
electromotive forces and small currents in the primary. When he works
with condenser charges--and they are the only means up to the present
known for reaching these extreme frequencies--he gets to electromotive
forces of several thousands of volts per turn of the primary. He
cannot multiply the electro-dynamic inductive effect by taking more
turns in the primary, for he arrives at the conclusion that the best
way is to work with one single turn--though he must sometimes depart
from this rule--and he must get along with whatever inductive effect
he can obtain with one turn. But before he has long experimented with
the extreme frequencies required to set up in a small bulb an
electromotive force of several thousands of volts he realizes the
great importance of electrostatic effects, and these effects grow
relatively to the electro-dynamic in significance as the frequency is
increased.

Now, if anything is desirable in this case, it is to increase the
frequency, and this would make it still worse for the electro-dynamic
effects. On the other hand, it is easy to exalt the electrostatic
action as far as one likes by taking more turns on the secondary, or
combining self-induction and capacity to raise the potential. It
should also be remembered that, in reducing the current to the
smallest value and increasing the potential, the electric impulses of
high frequency can be more easily transmitted through a conductor.

These and similar thoughts determined me to devote more attention to