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Twenty-five cadavers were completely dissected and skin, adipose tissue, muscle and skeleton were weighed. The sample ranged in age from 55-94 years and consisted of 12 embalmed (6 male, 6 female) and 13 unembalmed (6 male, 7 female) Belgian subjects. Females had more dissectable adipose tissue (40.5% of body weight) than males (28.1%). The mean composition of the adipose-tissue-free weight (analogous to lean body weight) for all cadavers was: skin, 8.5% (S.D. 1.2%); muscle, 50.0% (4.4%); bone, 20.6% (2.6%). These figures are compared to existing dissection data from the 19th and 20th century literature.