794. The Inflammables are accordingly associated with the acids or the salts, the ores with the earths. It may be said that the former are reduced acids, the latter reduced earths. 795. The Inflammables are consequently those that succeed next to the salts or water-minerals. Their determining element is in this respect also the air; that of the ores is therefore the fire. 796. The Inflammable, as being the reduced acid, must have the strongest affinity for oxygen. A body, which by its own force, attracts the oxygen from the air, so that it appears luminous, is called combustible. 797. The generating spirit of the Inflammables coincides with the spirit of air, and thus with electricity. The generating spirit of metals coincides with the light; it is the radial action in the Massive, or magnetism. 798. Electricity has become embodied in the Inflammable, i. e. idioelectric; in metal, light has become embodied, i. e. idiomagnetic. 799. Now, as the Inflammable exists under two forms, with the preponderance of the earth-nature as coal, and with that of the air-nature as sulphur, so must the electricity appear fixed chiefly in the latter. This fixation is the idioelectricity. 800. As electricity is in its essence a constantly dualized agent, so can only one pole belonging to it become fixed. In sulphur this is what has been called the _negative_ pole. a. SULPHUR. 801. As the air stands opposed to the earth, so must sulphur to coal. The latter is thus endowed with positive electricity. 802. Coal is, however, the fundamental body of the metals. The metals are consequently related as positive electrics to sulphur. Sulphur is air-metal or idio-negative; metal is earth-or idiopositive sulphur. Sulphur therefore occurs almost solely with metals, as iron, pyrites, glance; yet frequently with arsenic, the metal that resembles it, e. g. in realgar. 803. Sulphur is the basis of all idioelectrism, and this property occurs only in bodies, in so far as they are positions of sulphur. 804. Magnetism and electrism are correlated, as iron and sulphur, as gravity and light, as centre and periphery. The same spirit, which when ruling in the dark, exhibits itself as magnetic, is manifested when it has attained to light in sulphur as electrical. Magnetism is only the electricity identified. 805. We may therefore speak of idiomagnetic metals as well as idioelectric bodies. 806. Magnetism therefore stands in accordance with these relations in opposition to electrism; they mutually change or annihilate each other. 807. Electrism has, in accordance with its signification, the power of manifesting itself with one pole accumulated or set free from the other, as e. g. the negative in a cake of resin; in magnetism, on the contrary, both poles are always together and inseparable. The radius is divided into two in every part of its length.