What is "telegraphists"

Usage examples of "telegraphists".

The electricians had contrived a catchment pool and a wheel in the torrent close at hand—for the little Mulhausen dynamo with its turbinal volute used by the telegraphists was quite adaptable to water driving, and on the sixth day in the evening the apparatus was in working order and the Prince was calling—weakly, indeed, but calling—to his air-fleet across the empty spaces of the world.