The Biology of Senescence: 1964 Edition Published copy of the 2nd edition (London: Routlege & Kegan Paul, 1964), annotated by Alex Comfort. Inclusdes typescript inserts including: Revisions and additions Offprint of George A Sacher, "Maturation and Longevity in Relation to Cranial Capacity in Hominid Evolution", a chapter from R Tuttle, Ed., <i>Primate Functional Morphology and Evolution</i>, (The Hague: Moulton, 1975) Untitled typescript paper beginning "Ageing is a phenomonon common to human tissues and to man-made materials such as rubber" Offprint of Alex Comfort paper, "Feasibility in Age Research", reprinted from Nature, Vol 217, No 5126, pp 320-322, 27 January 1968 1964