Alchemy or alchymy is the art which in former times occupied the place of and paved the way for the modern science of chemistry (as astrology did for astronomy), but whose aims were not scientific, being confined solely to the discovery of the means of indefinitely prolonging human life, and of transmuting the baser metals into gold and silver.
Among the alchemists it was generally thought necessary to find a substance which, containing the original principle of all matter, should possess the power of dissolving all substances into their elements. This general solvent, or menstruum universale, which at the same time was to possess the power of removing all the seeds of disease out of the human body and renewing life, was called the philosophers stone, lapis philosopherum, and its pretended possessors were known as adepts. Alchemy nourished chiefly in the middle ages, though how old might be such notions as those by which the alchemists were inspired it is difficult to say. The mythical Hermes Trismegistus of pre-Christian times was said to have left behind him many books of magical and alchemical learning, and after him alchemy received the name of the hermetic art.
At a later period chemistry and alchemy were cultivated among the Arabians, and by them the pursuit was introduced into Europe. Many of the monks devoted themselves to alchemy, although they were latterly prohibited from studying it by the popes. But there was one even among these, John XXII, who was fond of alchemy. Raymond Lully, or Lullius, a famous alchemist of the thirteenth and fourteenth centuries, is said to have changed for King Edward I a mass of 50,000 lbs of quicksilver (mercury) into gold, of which the first rose-nobles were coined.
Among other alchemists may be mentioned Paracelsus and Basilius Valentinus. With the growth of chemistry, the recognition of the chemical elements as forming a large number of distinct substances, and the conception of the fixed unalterable nature of the atoms, attempts to transform the base metals into gold were largely abandoned as being unscientific. Research Alchemy
In philosophy, an attribute is a quality or property of a substance, as whiteness or hardness. A substance is known to us only as a congeries of attributes.
In the fine arts an attribute is a symbol regularly accompanying and marking out some personage. Thus the caduceus, purse, winged hat, and sandals are attributes of Mercury, the trampled dragon of St George. Research Attribute
There is evidence of the use of crystal balls as a means of divination in medieval times, and 'scrying' in some of its many forms was by no means rare in the Greek and Roman periods. The essential requisite for the exercise of this species of divination is a polished surface of some sort upon which the scryer shall gaze intently; for this purpose mirrors, globules of lead or mercury, polished steel, the surface of water, and even pools of ink, have been employed and have been found to ensure quite as satisfactory results as the crystal ball. The points of light reflected from the polished surface serve to attract the attention of the gazer and to fix the eye until, gradually, the optic nerve becomes so fatigued that it finally ceases to transmit to the sensorium the impression made from without and begins to respond to the reflex action proceeding from the brain of the gazer. In this way the impression received from within is apparently projected and seems to come from without.
It is easy to understand that the results must vary according to the idiosyncrasy of the various scryers; for everything depends upon the sensitiveness of the optic nerve. In many cases the effect of prolonged gazing upon the brilliant surface will simply produce a loss of sight, the optic nerve will be temporarily paralysed and will as little respond to stimulation from within as from without; in other cases, however, the nerve will be only deadened as regards external impressions, while retaining sufficient activity to react against a stimulus from the brain centres. It is almost invariably stated that, prior to the appearance of the desired visions, the crystal seems to disappear and a mist rises before the gazer's eye. The Achaians, as Pausanius relates, frequently used a mirror to divine diseases or to learn whether there was danger of sudden death. Research Crystal Gazing
Gilding is the art of applying gold-leaf or gold in a finely-divided state to surfaces of wood, stone, or metals. It is a very ancient art, being practised among the Egyptians, Greeks, Romans, and Ancient Persians. The processes employed through more modern times have been very varied. Metals are gilded either by what is called chemical gilding, mercurial gilding, by electro-gilding (electro-plating), or by the application of gold-leaf. Copper and brass, for instance, may be gilded by the process called wash or water gilding, with an amalgam of gold and mercury. The surface of the copper, freed from oxide, is covered with the amalgam, and afterwards exposed to heat until the mercury is driven off, leaving a thin coat of gold.
Gilding is also performed by dipping a linen rag in a saturated solution of gold, and burning it to tinder, the black powder thus obtained being rubbed on the metal to be gilded, with a cork dipped in salt water, until the gilding appears. Iron or steel is often gilded by applying gold-leaf, after the surface has been well cleaned, and heated until it has acquired the blue colour which at a certain temperature it assumes. Several leaves of gold are thus applied in succession, and the last is burnished down cold.
One process of chemical gilding was by dipping the article into a solution of gold, what is termed Elkington's solution being composed as follows: 5 oz. (troy) of fine gold; nitro-muriatic acid, 52 oz. (avoirdupois); dissolve by heat, and continue the heat until the cessation of red or yellow vapours; decant the clear liquid; add 4 gallons of distilled water, 20 lbs of pure bicarbonate of potassa and boiling for two hours.
Gilding on wood, plaster, leather, parchment, or paper, is performed by different processes of mechanical gilding. The first of these is oil-gilding, in which gold-leaf is cemented to the work by means of oil-size. In the case of paper or vellum the parts to be gilt receive a coat of gum-water or fine size, and the gold-leaf is applied before the parts are dry. They are afterwards burnished with agate. Lettering and other gilding on bound books are applied without size. The gold-leaf is laid on the leather and imprinted with hot brass types. Brass rollers with thin edges are employed in the same way for lines, and similar tools for other ornaments. When the edges of the leaves of books are to be gilt they are first cut smooth in the press, after which a solution of isinglass in spirits is laid on, and the gold-leaf is applied when the edges are in a proper state of dryness.
Japanner's gilding is another kind of mechanical gilding, which is performed in the same way as oil-gilding, except that instead of gold-leaf a gold dust or powder is employed. Frames of pictures and mirrors, mouldings, etc, are gilt by the application of gold-leaf, or by the cheaper process of 'German gilding,' that is, by tin-foil or silver-leaf, with a yellow varnish above.
Porcelain and other kinds of earthenware, as well as glass, may be gilt by fixing a layer of gold in a powdered state by the action of fire. The gold-dust or powder required in this operation may be obtained by precipitating it from a solution in aqua regia, either by means of iron sulphate or proto-nitrate of mercury. In order that the gold powder may be applied to the surface of the article to be gilt it must be well mixed with some viscous vehicle, such as strongly-gummed water. It is then laid on with a fine camel's-hair brush. Research Gilding
In ordinary speech the horizon is line where the earth and the sky seem to meet, or the circle which bounds that part of the earth's surface visible to a spectator from a given point. This is termed the sensible, visible, or apparent horizon, as distinguished from the rational or celestial horizon, an imaginary great circle, parallel to the sensible horizon, whose plane passes through the earth's centre, whose poles are the zenith and the nadir, and which divides the sphere into two equal hemispheres. In observations with the sextant at sea, when the real horizon is invisible a small basin containing mercury may serve as an artificial horizon. The observation that is then made is the
angle between the sun or star and the image of the sun or star in the basin of mercury, and it is easily seen that half this angle is the altitude of the object above the real horizon. In geology, the term is applied to any well-marked formation which suffices as a starting-point from which to study the rest. Research Horizon
The Newport Mercury was the second newspaper published in Rhode Island. It was founded and edited by James Franklin, and the first numbers appeared at Newport in September, 1758. This journal attained considerable success, becoming at once self-supporting. Research Newport Mercury
A newspaper is a publication reporting and commenting upon news. The first periodicals were published by the Romans., the first newspapers proper were produced in Venice by the government, published monthly during the war of 1563 against the Turks.
The first genuine newspaper established in the United States was the Boston News Letter founded at Boston in 1704 by Postmaster John Campbell, and continued until 1776. Previous to this there had been
issued at Boston three publications of one number each. Of these the first, called a Newspaper Extraordinary consisted wholly of extracts from a letter of Dr. Increase Mather, who was then in London endeavouring to obtain a new charter for Massachusetts. This letter was published by Samuel Green in 1689.
On September the 25th, 1690, appeared the first and only number of
Publick Occurrences Foreign and Domestic issued by Benjamin Harris. The authorities promptly seized and suppressed the paper as 'a pamphlet published contrary to law and containing reflections of a very high nature'. In 1697 B Green and J Allen republished a news letter, bearing no title, which had been issued in London the same year. It was printed on a single page, .and contained small news items from the continent. After the Boston News Letter there appeared in 1719 the Boston Gazette Andrew Bradford issuing the American Weekly Mercury at Philadelphia the same year. James Franklin established the New England Courant at Boston two years later. This was suppressed for its attacks upon the Government and clergy, but was revived by Benjamin Franklin. WilliamBradford began the Gazette at New York in 1725, and John Peter Zenger the New York Weekly Journal in 1733, in the cause of the people against the Colonial Government. Zenger's paper may be regarded as a prototype of the modern news journal. Newspapers were founded in the other American colonies in the following order: In Maryland, at Annapolis, in 1727; in South Carolina, at Charleston, in 1731; in Rhode Island, at Newport, in 1731; in Virginia, at Williamsburg, in 1736; in North Carolina, at New Berne, in 1755; in Connecticut, at New Haven, in 1755; in New Hampshire, at Portsmouth, in 1756; in Georgia, at Savannah, in 1763; in Vermont, at Westminster, in 1781.
Between 1704 and 1775 seventy-eight different newspapers had been printed with varied success in the American colonies. Of these, thirty-nine were in actual process of publication at the outbreak of the American War of Independence. The papers most influential in advancing the revolutionary cause were the Boston Gazette and the Massachusetts Spy, On the British occupation of Boston, New York and Philadelphia, most of the Whig journals were suspended. It has been estimated that the thirty-nine newspapers of 1775 circulated about 1,300,000 copies annually.
After the Federal Constitution was adopted in America the newspapers fell largely into the hands of English immigrants, men of versatility and talent. Violent partisan controversies arose. The most influential papers of this period were the Columbian Centinel, published at Boston during forty years, commencing in 1784, by Benjamin Russell; the New York Minerva, established at New York in 1793 by Noah Webster; the New York Evening Post, established as the central organ of the Federalists in 1801; the Philadelphia Aurora, founded by Benjamin Franklin Bache in 1790, and afterward edited with vindictive partisanship by William Duane, an Englishman; the Philadelphia National Gazette, established in 1791 by Philip Freneau; and the National Intelligencer, established at Washington by Samuel H Smith in 1800.
The first American penny paper was the New York Sun, established in 1833 by Benjamin Day. The first American Sunday paper was the Sunday Courier, appearing in New York in 1825, with but little success. The chief period of the political influence of editors in the United States was that beginning in 1830 and ending after the American Civil War. Before that date the editor was often of little account, but from 1830 to 1870 the paper was often known chiefly as the organ of the individual editor's opinions. Research Newspaper
The Ptolemaic system was a system of astronomy set forth by the Egyptian astronomer Clausius Ptolemaeus during the 11th century. By the Ptolemaic system the earth is fixed in the centre of the universe and the heaves revolve around the earth from east to west, carrying with them the sun, planets and fixed stars in their respective spheres. The system says that the Moon is next above the earth, then Mercury, then Venus; the Sun is next then Mars, and then after MarsJupiter and Saturn, beyond Saturn are two crystalline spheres.
It was the nonsense of the Ptolemaic system that Copernicus proved wrong and was so persecuted for until his system was adopted in the sixteenth century. Research Ptolemaic System
Quick actually means alive, hence we have terms in English such as quicksand, so called because the sand shifts as though it were alive (quick), and mercury was once called quicksilver, in allusion to it being living silver. Research Quick
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Alchemy
