Generally speaking, the price of the meter is a subordinate consideration.
The ultimate goal, I submit, is not to optimize just meter by meter but what I call "grape by grape," down to each individual piece of flora and fauna.
It consisted of a glass vessel, containing a solution of sulphate of zinc, in which were placed two plates of pure amalgamated zinc. These plates were connected by means of a german-silver shunt, their size and the distance between them being so adjusted that about ii 0 - 0 - part of the current passing through the meter travelled through the electrolytic cell and -j o i j of the current passed through the shunt.
A modification of the above meter with some mechanical improvements has been devised by S.
2 In Donitz's wave meter a condenser of variable capacity is associated with inductance coils of various sizes, and the wave meter is placed near the antenna so that its inductance coils have induced currents created in them.