This is the second of two volumes - the first volume being Waltraud Brennenstuhl's Control and Ability (P&B III:4) - treating biocybernetical questions of language. This book starts out from an investigation of the (neuro-)biological relevancy of natural language from the point of view of grammar and the lexicon. Furthermore, the basic mechanisms of the self-organization of organisms in their environments are discussed, in so far as they lead to linguistic control and abilities.