I may mention here that radio-aerograms are seldom if ever used in war time, or for the transmission of secret dispatches at any time, for as often as one nation discovers a new cipher, or invents a new instrument for wireless purposes its neighbours bend every effort until they are able to intercept and translate the messages. For so long a time has this gone on that practically every possibility of wireless communication has been exhausted and no nation dares transmit dispatches of importance in this way.
Tars Tarkas reported all well with the transports. The battleships passed through to take an advanced position, and the combined fleets moved slowly over the ice cap, hugging the surface closely to prevent detection by the therns whose land we were approaching.