The blind are those who want, or are deficient in, the sense of sight. Blindness may vary in degree from the slightest impairment of vision to total loss of sight; it may also be temporary or permanent. It is caused by defect, disease, or injury to the eye, to the optic nerve, or to that part of the brain connected with it. Old age is sometimes accompanied with blindness, occasioned by the drying up of the humours of the eye, or by the opacity of the cornea, the crystalline lens, etc. The blind are often distinguished for a remarkable mental activity, and a wonderful development of the intellectual powers. Their touch and hearing, particularly, become very acute.
As early as 1260 an asylum for the blind (L'hospice des Quinze-Vingts) was founded in Paris by St Louis for the relief of the Crusaders who lost their sight in Egypt and Syria; but the first institution for the instruction of the blind was the idea of Valentin Hauy, brother of the celebrated mineralogist. In 1784 he opened an institution in which the blind were instructed not only in appropriate mechanical employments, as spinning, knitting, making ropes or fringes, and working in paste-board, but also in music, in reading, writing, ciphering, geography, and the sciences. For instruction in reading he procured raised letters of metal; for writing he used particular writing-cases, in which a frame, with wires to separate the lines, could be fastened upon the paper; for ciphering there were movable figures of metal, and ciphering-boards in which the figures could be fixed; for teaching geographymaps were prepared upon which mountains, rivers, cities, and the boundaries of countries were indicated to the sense of touch in various ways, etc.
Similar institutions were soon afterwards founded in Amsterdam, Berlin, Brussels, Copenhagen, Dresden, Edinburgh, Liverpool, London, Vienna, and in many towns of the United States. By 1900 there were comparatively few large cities that did not possess a school or institution of some kind for the blind.
At the start of the 20th century the attitude towards the blind was rather patronising, and one source may be quoted as saying 'the occupations in which the blind are found capable of engaging are such as the making of baskets and other kinds of wicker-work, brushmaking, rope and twine making, the making of mats and matting, knitting, netting, fancy work of various kinds, cutting fire-wood, the sewing of sacks and bags; the carving of articles in wood, etc'. However, it was also recognised that more skilled tasks could also be performed by blind persons, and the same source notes that 'Piano-tuning is also successfully carried on by some, and the cleaning of clocks and watches has even been occasionally practised by them'.
Around 1900 an impetus was given, in Britain, to the higher education of the blind by the formation of the British and Foreign Blind Association, the establishment of a college for the Blind Sons of Gentlemen at Worcester, and the Royal Normal College and Academy of Music for the Blind, Upper Norwood.
Various systems were devised for the purpose of teaching the blind to read, some of which consisted in the use of the ordinary Roman alphabet, with more or less modification, and some of which employ types quite arbitrary in form. In all systems the characters rise above the surface of the paper so as to be felt by the fingers. The type adopted by Hauy was the script or italic form of the Roman letter. This was introduced into England by Sir C. Lowther, who printed the Gospel of St. Matthew in 1832 with type obtained from Paris. Before this Gall of Edinburgh made use of an embossed alphabet based on the ordinary Roman small letters, in which all curves were replaced by angular lines, and in 1834 he published the Gospel of St John in this character. Subsequently he introduced various improvements, and in particular the letters were produced with serrated surfaces, thus giving greater distinctness. Alston of Glasgow, Howe of Boston, and others also used the Roman form; but the former (who was the first to print the whole Bible, in 1840) adopted the Roman capitals, while the latter adopted the small letters, printing in this type the Bible and many other books. Of alphabets deviating entirely or nearly so from the Roman letter, one consists of a stenographic shorthand invented by Lucas of Bristol; another was a phonetic shorthand devised by Frere of London. In Dr. Moon's alphabet some of the characters are Roman, others are based on or suggested by the Roman characters. The Braille system, widely adopted by the laye 20th century, is one in which the letters are formed by a combination of dots. Dr. Moon's system from its simplicity and the size of its characters is in very general use in books for the blind. There are also systems by which the blind are enabled to write, and the writing may be either in relief so as to be read by the blind, or in characters that may be read by those who see. Research Blind
Ivory is an opaque, creamy white, hard, fine-grained, modified dentin that composes the upper incisor teeth of an elephant. Ivory is composed of curved layers of dentine alternating in shade, that intersect one another; the resulting lozenge-shaped structure is elastic and finely grained. The layers of a tusk are deposited from the central pulp, so that the innermost layer is the newest. Most commercial elephant ivory is obtained from the tusks of the African elephant, mainly from eastern and central Africa. (Most of the ivory of the western half of Africa is hard, whereas that from the eastern half is soft. Hard ivory is glassier in texture, harder to cut and more likely to crack than soft ivory.)
Fossil ivory, called odontolite, is a blue variety that is found in small quantities in the frozen soil of northern Siberia. Odontolite was produced by the mammoths of the Pleistocene geological epoch; its blue colour results from saturation by metallic salts. Carved ivory has been used for decorative purposes since the time of the ancient Egyptians. Small pieces of ivory are used for high-quality furniture inlays, chess pieces, and small jewellery. Larger pieces of ivory sometimes have been used in the manufacture of billiard balls, piano keys, and toilet articles.
During the late 1980s, as Africa's elephant herds declined, environmentalists led a world-wide effort to shut down the ivory trade; in 1989 the USA and the European Union banned all ivory imports. Tusks of several other animals such as hippopotamuses, narwhals, sperm whales, and walruses are commonly called ivory and have similar physical properties, and many plastic substitutes for ivory have been developed. Several ivory-like vegetable parts are also used in imitation of ivory; the ivory palm, for example, produces large, white, hard seeds, called ivory nuts, the endosperm of which is commonly known as vegetable ivory. In painting, ivory is a delicate colour deeper in tone than off-white, but not so deep as cream. Research Ivory
Steinway and Sons are an American firm of piano makers. They were founded in 1853 at New York by Henry Steinway and his sons: Charles, Henry, William and Albert. They were joined in 1865 by the eldest son, Theodore. The Steinways were natives of Brunswick, but emigrated to the USA in 1849. Research Steinway and Sons
Ebony is the popular name of various plants of different genera, agreeing in having wood of a dark colour. The best-known ebony is derived from plants of the genusDiospyros, of the natural order Ebenaceae.
The most valuable is the heart-wood of Diospyros Ebenus, which grows in great abundance in the flat parts of Sri Lanka, and is of such size that logs of its heart-wood 60 cm in diameter and from 3 to 4.5 metres long are easily procured. Other varieties of valuable ebony are obtained from Diospyros Ebenaster of the East Indies and Diospyros melanoxylon of Coromandel. Ebony is hard, heavy, and durable, and admits of a fine polish or gloss. The most usual colour is black, red, or green. The best is jet black, free from veins, very heavy, astringent, and of an acrid pungent taste. On burning coals it yields an agreeable perfume, and when green it readily takes fire from its abundance of fat. It is wrought into toys, and used for mosaic and inlaid work, but is most familiar as the black keys on a piano keyboard. Research Ebony
Adrien Francois Boieldieu was a French composer. He was born in 1775 at Rouen and died in 1834 of pulmonary disease. He early displayed great musical talent, his first opera, La Famille Suisse, being well received in 1795 at Rouen. In 1795 he repaired to Paris, and rose rapidly in reputation, producing several operas, of which the best was Le Calife de Baghdad (1799). Domestic difficulties drove him in 1802 to Russia, where he became musical director to the emperor.
On his return to Paris in 1811 he produced, among other works, his two masterpieces, Jean de Paris (1812) and La Dame Blanche (1825), which place him in the first rank of composers of French comic opera. For some years he was professor of composition and the piano-forte at the Conservatoire. Research Adrien Boieldieu
Alicia Keys is an American singer. She was born in 1981 at New York of a black father and white mother. Introduced to the piano at the age of seven to escape the misery of a rough neighbourhood, she studied classical music, developing a passion for Chopin before writing her first song when she was fourteen. Research Alicia Keys
Delia Derbyshire was a British composer and the inspiration behind modern electronic music. She died in 2001. As a studio manager at the BBC, working in the radiophonic workshop she arranged the theme tune for the 1960's television series 'Dr Who' from a few suggested notes passed to her on a scrap of paper by her boss. Delia Derbyshire composed music from adjusting sounds she found in everyday life, such as a metal lamp shade being struck by a stick, or a key run along a piano string, a sound which features in the Dr Whotheme tune, recording these sounds onto short pieces of tape, and splicing them, adjusting the speed at which they were played and playing them backwards to produce revolutionary new sounds, all without the benefit of computers or synthesisers. Research Delia Derbyshire
Abbreviations
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