Volume II Sociotemporal Perspectives. The ways in which people age from birth to death over the life course depend upon where and when they live. Much evidence has been gathered to demonstrate that aging is not an immutable process rather, aging varies as social structure varies and changes. But how does the life course vary? Under what conditions of place and time do particular individuals age in particular ways? This book, a companion to Aging from Birth to Death Interdisciplinary Perspectives edited by Matilda White Riley AAAS Selected Symposium 30 Westview, 1979, addresses these questions from two perspectives. From the