No effect whatever was observed.

But though quiescent water gave no effect, moving water might.

He therefore worked at London Bridge for three days during the ebb and flow of the tide, but without any satisfactory result.

Still he urges, 'Theoretically it seems a necessary consequence, that where water is flowing there electric currents should be formed.

If a line be imagined passing from Dover to Calais through the sea, and returning through the land, beneath the water, to Dover, it traces out a circuit of conducting matter one part of which, when the water moves up or down the channel, is cutting the magnetic curves of the earth, whilst the other is relatively at rest....