Who wouldn't like to know the whys and wherefores of growing old? Of late many books have been written on various aspects of this topic, and one of the most interesting of them is the little book which is the subject of this review. The unifying idea of the book is that something important about the process of aging might be learned from an investigation of the aging of tissues that have a shorter normal life than the parent organism. It was hoped such information might provide unsuspected clues and suggestions for further work on aging. Since the colloquia were designed to consider basic mechanisms and not the possible applications to human medicine, the participants were biologists, anatomists, physiologists, zoologists, and botanists.
An inspection of the table of contents gives a good idea of the scope of the book and the kind of information it contains. Five papers deal with