TABLE OF CONTENTS

CHAPTER PAGE
[I.][Natural Fortresses Strengthened]1
[II.][Fortified Hill-Tops]13
[III.][Simple Artificial Enclosures]33
[IV.][The Motte and Bailey Castle]48
[V.][The Shell Keep]64
[VI.][The Rectangular Keep]76
[VII.][The Cylindrical Keep]101
[VIII.][The Concentric Castle]110
[IX.][The Castellated Mansion]147
[X.][The Castles of Scotland]173
[XI.][The Siege and Defence of a Medieval Castle]188
[INDEX]201