But there remain two problems to resolve before the plan can be put into practice.
This is infallibility put into practice by definite acts.
P. Granville put into practice between Alum Bay in the Isle of Wight and the Needles lighthouse a method which depends upon conduction through sea water.
Arrangements not very different in general principle were put into practice in the United States by Fessenden, de Forest and others.
The inventions of Slaby, Braun and others were put into practice by a German wireless telegraph company, and very much work done in erecting land stations and equipping ships.
The system has already been put into practice in Germany by the Gesellschaft fur drahtlose Telegraphie, and in the United States by R.