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Originally published in 1921, this book presents the content of three lectures delivered during the April of that year in Cambridge. Each lecture is divided over two chapters. The text provides an account of delegated legislation and its replacement of prerogative legislation. The benefits of delegation are discussed, alongside the ways in which liberties, if imperilled, can be protected by safeguards. Appendices are also included. This book will be of value to anyone with an interest in legal history and British legislative practice.