Page:EB1911 - Volume 04.djvu/916

 a remarkable development. The buttresses of the early English period have considerable projection with two or three sets-off sloped at an acute angle dividing the stages and crowned by triangular heads; and slender columns (“buttress shafts”) are used at the angle. In later work pinnacles and niches are usually employed to decorate the summits of the buttresses, and in the still later Perpendicular work the vertical faces are all richly decorated with panelling.

BUTYL ALCOHOLS, C4H9OH. Four isomeric alcohols of this formula are known; two of these are primary, one secondary, and one tertiary (see ). Normal butyl alcohol, CH3·(CH2)2·CH2OH, is a colourless liquid, boiling at 116.8°, and formed by reducing normal butyl aldehyde with sodium, or by a peculiar fermentation of glycerin, brought about by a schizomycete. Isobutyl alcohol, (CH3)2CH·CH2OH, the butyl alcohol of fermentation, is a primary alcohol derived from isobutane. It may be prepared by the general methods, and occurs in fusel oil, especially in potato spirit. It is a liquid, smelling like fusel oil and boiling at 108.4° C. Methyl ethyl carbinol, CH3·C2H5·CHOH, is the secondary alcohol derived from n-butane. It is a strongly smelling liquid, boiling at 99°. Trimethyl carbinol or tertiary butyl alcohol, (CH3)3·COH, is the simplest tertiary alcohol, and was obtained by A. Butlerow in 1864 by acting with zinc methyl on acetyl chloride (see ). It forms rhombic prisms or plates which melt at 25° and boil at 83°, and has a spiritous smell, resembling that of camphor.

BUTYRIC ACID, C4H8O2. Two acids are known corresponding to this formula, normal butyric acid, CH3·CH2·CH2·COOH, and isobutyric acid, (CH3)2·CH·COOH. Normal butyric acid or fermentation butyric acid is found in butter, as an hexyl ester in the oil of Heracleum giganteum and as an octyl ester in parsnip (Pastinaca sativa); it has also been noticed in the fluids of the flesh and in perspiration. It may be prepared by the hydrolysis of ethyl acetoacetate, or by passing carbon monoxide over a mixture of sodium acetate and sodium ethylate at 205° C. (A. Geuther, Ann., 1880, 202, p.306), C2H5ONa + CH3COONa + CO = H·CO2Na + CH3·CH2·CH2·COONa. It is ordinarily prepared by the fermentation of sugar or starch, brought about by the addition of putrefying cheese, calcium carbonate being added to neutralize the acids formed in the process. A. Fitz (Ber., 1878, 11 p. 52) found that the butyric fermentation of starch is aided by the direct addition of Bacillus subtilis. The acid is an oily liquid of unpleasant smell, and solidifies at −19° C.; it boils at 162.3° C., and has a specific gravity of 0.9746 (0° C.). It is easily soluble in water and alcohol, and is thrown out of its aqueous solution by the addition of calcium chloride. Potassium bichromate and sulphuric acid oxidize it to carbon dioxide and acetic acid, while alkaline potassium permanganate oxidizes it to carbon dioxide. The calcium salt, Ca(C4H7O2)2·H2O, is less soluble in hot water than in cold.

Isobutyric acid is found in the free state in carobs (Ceratonia siliqua) and in the root of Arnica dulcis, and as an ethyl ester in croton oil. It may be artificially prepared by the hydrolysis of isopropylcyanide with alkalies, by the oxidation of isopropyl alcohol with potassium bichromate and sulphuric acid (I. Pierre and E. Puchot, Ann. de chim. et de phys., 1873, [4] 28, p. 366), or by the action of sodium amalgam on methacrylic acid, CH2·C(CH3)·COOH. It is a liquid of somewhat unpleasant smell, boiling at 155.5° C. Its specific gravity is 0.9697 (0°). Heated with chromic acid solution to 140° C., it gives carbon dioxide and acetone. Alkaline potassium permanganate oxidizes it to -oxyisobutyric acid, (CH3)2·C(OH)·COOH, whilst concentrated nitric acid converts it into dinitroisopropane. Its salts are more soluble in water than those of the normal acid.

BUXAR, or, a town of India, in the district of Shahabad, Bengal, on the south bank of the Ganges, and on the East Indian railway. Pop. (1901) 13,945. There is a dismantled fort of small size which was important from its commanding the Ganges. A celebrated victory was gained here on the 23rd of October 1764 by the British forces under Major (afterwards Sir Hector) Munro, over the united armies of Shuja-ud-Dowlah and Kasim Ali Khan. The action raged from 9 o’clock till noon, when the enemy gave way. Pursuit was, however, frustrated by Shuja-ud-Dowlah sacrificing a part of his army to the safety of the remainder. A bridge of boats had been constructed over a stream about 2 m. distant from the field of battle, and this the enemy destroyed before their rear had passed over. Through this act 2000 troops were drowned, or otherwise lost; but destructive as was this proceeding, it was, said Major Munro, “the best piece of generalship Shuja-ud-Dowlah showed that day, because if I had crossed the rivulet with the army, I should either have taken or drowned his whole army in the Karamnasa, and come up with his treasure and jewels, and Kasim Ali Khan’s jewels, which I was informed amounted to between two and three millions.”

BUXTON, JEDEDIAH (1707–1772), English arithmetician, was born on the 20th of March 1707 at Elmton, near Chesterfield, in Derbyshire. Although his father was schoolmaster of the parish, and his grandfather had been the vicar, his education had been so neglected that he could not write; and his knowledge, except of numbers, was extremely limited. How he came first to know the relative proportions of numbers, and their progressive denominations, he did not remember; but on such matters his attention was so constantly riveted, that he frequently took no cognizance of external objects, and when he did, it was only with reference to their numbers. He measured the whole lordship of Elmton, consisting of some thousand acres, simply by striding over it, and gave the area not only in acres, roods and perches, but even in square inches. After this, he reduced them into square hairs'-breadths, reckoning forty-eight to each side of the inch. His memory was so great, that in resolving a question he could leave off and resume the operation again at the same point after the lapse of a week, or even of several months. His perpetual application to figures prevented the smallest acquisition of any other knowledge. His wonderful faculty was tested in 1754 by the Royal Society of London, who acknowledged their satisfaction by presenting him with a handsome gratuity. During his visit to the metropolis he was taken to see the tragedy of Richard III. performed at Drury Lane theatre, but his whole mind was given to the counting of the words uttered by David Garrick. Similarly, he set himself to count the steps of the dancers; and he declared that the innumerable sounds produced by the musical instruments had perplexed him beyond measure. He died in 1772.

BUXTON, SIR THOMAS FOWELL (1786–1845), English philanthropist, was born in Essex on the 1st of April 1786, and was educated at Trinity College, Dublin, where, in spite of his early education having been neglected, hard work made him one of the first men of his time, with a high reputation as a speaker. In 1807 he married Hannah Gurney, sister of the celebrated Elizabeth Fry. As his means were not sufficient to support his family, he entered in 1808 the brewery of Truman, Hanbury & Company, of which his uncles, the Hanburys, were partners. He devoted himself to business with characteristic energy, became a partner in 1811, and soon had the whole concern in his hands. In 1816 he brought himself into notice by his speech on behalf of the Spitalfields weavers, and in 1818 he published his able Inquiry into Prison Discipline. The same year he was elected M.P. for Weymouth, a borough for which he continued to sit till 1837. In the House of Commons he had a high reputation as an able and straightforward speaker, devoted to philanthropic schemes. Of these plans the most important was that for the abolition of slavery in the British colonies. Buxton devoted his life to this object, and through defeat and opposition, despite the attacks of enemies and the remonstrances of faint-hearted friends, he remained true to it. Not till 1833 was he successful, and even then only partially, for he was compelled to admit into the bill some clauses against which his better judgment had decided. In 1837 he ceased to