Obesity, relation to food consumption, [270]
Old age, metabolism in, [296]
Osborne and Clapp, on chemistry of proteids of wheat kernel, [258]
Osmosis, as factor in absorption, [41]
Overeating, evil effects of, [270]
Overfeeding, in laying on of fat, [98], [99]
Oxidase, xanthin, [73]
Oxidases, [64]
Oxidation, in metabolism, [60]