CHAPTER III
CHEMISTRY OF THE HUMAN BODY.
42. An ULTIMATE ELEMENT is the simplest form of matter with which we are acquainted; as gold, iron, &c.
43. These elements are divided into metallic and non-metallic substances. The metallic substances are Po-tas´si-um, So´di-um, Cal´ci-um, Mag-ne´si-um, A-lu´min-um, I´ron, Man´ga-nese, and Cop´per. The non-metallic substances are Ox´y-gen, Hy´dro-gen, Car´bon, Ni´tro-gen, Si-li´-ci-um, Phos´phor-us, Sul´phur, Chlo´rine, and a few others.
44. Potash (potassium united with oxygen) is found in the blood, bile, perspiration, milk, &c.
45. Soda (sodium combined with oxygen) exists in the muscles, and in the same fluids in which potash is found.
46. Lime (calcium combined with oxygen) forms the principal ingredient of the bones. The lime in them is combined with phosphoric and carbonic acid.
47. Magnesia (magnesium combined with oxygen) exists in the bones, brain, and in some of the animal fluids; as milk.