The necessary wire would have been too heavy, and his messages could not have been kept secret.

In fact, this telegraphic communication between Sardis and the submarine vessel was almost as primitive as that in use in the latter part of the nineteenth century.
But Clewe had scarcely entered the office when he was surprised by the sound of the instrument, and he soon found that Sammy was calling to him from the polar seas.

He sat down instantly and received this message: "Could not send more last night.

Gibbs came in.

Did not want him to know until I had heard from you.