Guest Editorial

Bacon E N , 1974 Design of Cities (Thames and Hudson, London)

Hunt K H , 1978 Kinematic Geometry of Mechanisms (Clarendon Press, Oxford)

Reuleaux F , 1876 The Kinematics of Machinery (Macmillan, London) reprinted in 1963 by Dover, New York

Simon H , 1969 The Sciences of the Artificial (MIT Press, Cambridge, Mass)

Noyce R N , 1977 “Microelectronics” Scientific American 237 (September) 63–69