This volume contains most of the talks presented at the Journ es de la Soci t Math ma ique de France entitled Rhythms in Biology and other fields of application -Determi- nistic and Stochastic Approaches held in Luminy from the 14th th to the 18 of September 1981. The aim of our meeting was to bring together scien- tists from different disciplines to discuss a common topic and to stimulate exchanges between participants. We hope that this goal was reached. This volume is divided into four chapters. In each one the papers are arranged in alphabetical order by first author. Chapters one and two...