Coggins, Jack

Relates "the history of signaling from ancient times to the present and the wide variety of equipment used--from torches and other lights to flags, trumpets, and electrical devices--Book buyer's guide.

A history of man's growing sophistication in navigation, covering advances in sounding devices, speedometers, celestial navigation, compasses, and map making.

Relates "the history of signaling from ancient times to the present and the wide variety of equipment used--from torches and other lights to flags, trumpets, and electrical devices--Book buyer's guide.

The Revolutionary war is traced through events recorded in the diaries of three youths who participated in the War for Independence.

An investigation into all aspects of exploration under the ocean's surface, from undersea living to uses of sea resources.

The Revolutionary war is traced through events recorded in the diaries of three youths who participated in the War for Independence.