Sight, organs of, [373].
Sigmoid flexure, [158].
Simple life, [410].
Skeleton, [216]-[243].
How deformed, [234].
Hygiene of, [233].
Plan of, [221].
Purpose of, [221].
Skin, [264]-[277].
As regulator of temperature, [270].
Experiments on, [349].
Functions of, [267], [268].
Observations on skin, [278].
Skin wounds, treatment of, [275].
Skull, [225].
Sleep, [329].
Small intestine, [151].
Mucous membrane of, [151].
Muscular coat of, [152].
As organ of absorption, [173].
Parts of, [151].
Serous coat of, [152].
Work of, [157].