ABSTRACT
The remarks, or should I say questions, that follow are simply aimed at reminding the reader once again of the purpose of this book: to analyse the individual ageing process and its interactions with every structural facet of productive activity. It just so happens that the kind of information needed is not readily available. So what we have will just have to do; it is better than nothing. However, accepting this, currently unavoidable approximations should not result in altering meaning or distorting our interpretation of findings.
