CONTENTS. 



CHAPTER I. 



Gliding. pagb 



Resistance of Air — Lift and Drift — Curve of Wings — Area 



of Supporting Surface . . . . . . . . . . 1 



CHAPTER II. 



Stability. 



Centre of Gravity — Points that make for Automatic Stability 



— Voluntary Adjustments . . . . . . . . 23 



CHAPTER III. 



Motive Power. 

 Leverage — Propulsion — Phases of the Wing-stroke . . 38 



CHAPTER IV. 



Starting. 



The Preliminary Jump — Loss of Altitude between Wing- 

 strokes — The Wing's Freedom to Rotate — Aeroplanes 

 — Muscles — Big Birds and Small . . . . 48 



CHAPTER V. 



Steering. 

 A Variety of Methods — Good Steerers and Bad . . 59 



CHAPTER VI. 



Stopping and Alighting . . . . 64 



