Chapter I Definition Of Disease.—Characteristics Of Living Matter.—Cells As The Living Units.—Amoeba As Type Of A Unicellular Animal.—The Relation Of Living Matter To The Environment.—Capacity Of Adaptation To The Environment Shown By Living Matter—Individuality Of Living Matter.—The Causes Of Disease.—Extrinsic.—The Relation Of The Human Body To The Environment.—The Surfaces Of The... more...