CHAPTER II.--_Visual signaling equipment.

The wand 11 The flag kit: The 2-foot flag kit 12 The 4-foot flag kit 12 Care of flag material 13 Powers and limitations of flag signaling 13 The heliograph: Historical 14 Description 14 Assembling 17 Adjustment 20 Operation 21 Care of apparatus 22 Powers and limitations of the heliograph 22 The signal lantern: Acetylene 23 Calcium carbide 23 Method of gas generation 24 Description 25 Operation and care 30 Powers and limitations of the signal lantern 35 Rockets and shells: Description 35 Operation 38 Employment 40 The semaphore: Description 40 The searchlight: Methods of employment 41 The Coston signals 41 Very's night signals 42 The Ardois system of signaling 42 Sound signals 44 Improvised signal methods 44