Cybernetics and Development deals with the ways in which growing and developing biological systems control themselves during development. It is a preliminary attempt to apply some of the insights and techniques of cybernetics to the problem of understanding such development and its control. The book begins with a discussion of the nature of cybernetics and its methods. Separate chapters cover the use of cybernetics in the field of biological development; previous work in the area of cybernetics related to automata theory; and the application of information theory to development. Subsequent chapters present models of development. These include computer programs which continually replicate themselves and control the resulting development; growing automata nets as models of development; and a method that allows a system to control the relative sizes of its parts during development and afterwards during regeneration. This book provides enough background material to make it understandable both to the biologist with little knowledge of cybernetics and the cybernetician with no great knowledge of developmental biology.