Density of Body Fat in Man and Other Mammals

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Abstract
Density values of body fats from man and 7 other mammals are reported, together with measurements of thermal expansion. At 37[degree]C the density of extracted human fat is substantially constant at 0.9000 gm./cc. and the modulus of thermal expansion for the range 15[degree] to 37[degree] is 9.2 x 10-4 cc./gm./[degree]C. The density of the animal fats studied is somewhat higher, ranging up to a mean value of 0.9212 for internal fat in the lamb. No differences were found between internal and subcut. fats of man, dog, rat, rabbit and guinea pig, but significant differences according to location were found in the steer, pig and lamb, and high values for the modulus of thermal expansion were characteristic of the latter spp.
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