Notebook: Roger B. Farquhar, 1852-1853

crystalline limestone of very inferior quality. [SC36a6?] is used after the water of cristallization is expelled Alabaster is a fine [SC36a6?]. To Test whether limestone contains magnesia put on [SC3] it forms Mg [O?] which is soluable, Alumina forms the rock [Ruby?]

Topaz, Sapphire, [Orbiculile?] and Emery. Magnesia gives a greezy feel to all minerals that contain it.

It is found in Epsom salts [talo?] [doliniate?]. It is a dangerous thing to take unless the stomach is acid because it is insoluable except in the form off salt, silica, is nearly pure in the form of rock crystal, flint conibian and amethist.

it is used in the form of glass (which is [?] [?]) glass was not used until the 10 century in Europe and not until the 13 century in windows Although it was known to the ancients as it was found in Pompeii in the windows.

Lecture 37th The metals

The metals have been important in the arts and it may be said that no native which is civalized has existed without being acquainted with the properties of the metals

as applied to the wants of mankind. There are 7 metals, 7 planets and 7 days of the week, known to the ancients as followers within their symbols.

Sun Sunday Gold, Moon Monday Silver, Mars iron Mercury Mercury. Venus Copper Jupiter Tin, Saturn Saturday lead.

Iron has the property of being welded in consequence of its becoming soft at a temperature below that which it melts, But to join other metals one must take a thick metal and solder them, this union is called an alloy. The reduction of the metals is called Metallinge, this is generally performed by heating the oxide with charcoal, the affinity of the latter for oxygen at a high temperature being greater than that of the metal. To get the metallic oxide in close contact with the carbon mix in fine powder with oil apply a heat and the volatile portion passes off and leaves a coat of Carbon around each particle; Acids are called salt radicals the substances with which the acids combine are called Basile or base.

Gold is always in a metallic state, When [in rocks or sand?]

contain it anything one called asifervers, when obtained by heating the weks it scarcely even ways, as at Sandy Spring level 123 events to get one dollar. dm California formed aheady mashed or disintegrated from Ahyveks, it is also found Russia and different part of the United States So gildly the election [tyfw?] moerss have gold determined in lyammet of Potask. Gold has greatmallealrling it is said that 282, our ligues one ie gained to make an meih in [whichmess?] is when into the height hass though it of a generation colon. So extend a metal it must become met, when after it becomes rigged heat it again, and so on. When is found matin and contained with sulfur and oxygen. Sodelilile min is a solution of sithate of silver it stain may be removed from liven by, washing it in a solution of beignet of Potash, common self me erfitates when from its solution forming the Cl, dy. To obtain from siling dissolve it using rO3+ add beignet of Potash what meifitals which offers when common salt this meifitals the Cl, Ag and haves the make ihen when dissolved this in rO5 it forms good immediate milk [hereany?] is fluid at common temperatures. B have mass is an which of nerenry, with Cl formed baloneb and with 2 CL it forms eavosins sedimate. To adectain what then C alormed is good agitate it in mater when addany salf of Potash, if if is economize climate it gives a yellow evlon to the fluid, Platina is used as unveilders but it is injured by C Banlon. On Wollaston made the finer hains in the white cal intuhments by entending it in a chain of when and then dissolving then when ly rO5. the metals Indium and Osminium contained make the ends of Gold when lease they one so hand.