FiS. 4 ,^-T 'I W ; t Encyclopedia Britjnnicj; Or, A DICTIONARY O F ARTS, S C I E N C E S, &c. On a Plan entirely New: By Which, THE DIFFERENT SCIENCES AND ARTS Are digefted into the Form of Diftinft TREATISES or SYSTEMS, - COMPREHENDING The History, Theory, and Practice, of each, according to the Latefl Difcoveries and Improvements; AND FULL EXPLANATIONS given of the VARIOUS DETACHED PARTS OF KNOWLEDGE, WHETHER Relating to Natural and Artificial Objedts, or to Matters Ecclesiastical, ► Civil, Military, Commercial, &c. TOGETHER WITH A DESCPJPTION of all the Countries, Cities, Principal Mountains, Seas, Rivers, throughout the World; A General HISTORY, Ancient and Modern> of the different Empires, Kingdoms, and States; AND An Account of the LIVES of the mod Eminent Persons in every Nation, from the earlieft ages down to the prefent times. THE WHOLE COMPILED FROM THE WRITINGS OF THE BEST AUTHORS, IN SEVERAL LANGUAGES; THE MOST APPROVED DICTIONARIES, AS WELL OF GENERAL SCIENCE AS OF PARTICULAR BRANCHES; THE TRANSACTIONS, JOURNALS, AND MEMOIRS, OF LEARNED • tSOCIETIES, BOTH AT HOME AND ABROAD; THE MS. LECTURES OF EMINENT PROFESSORS ON DIFFERENT SCIENCES ; AND A VARIETY OF ORIGINAL MATERIALS, FURNISHED BY AN EXTENSIVE CORRESPONDENCE. The Second Edition; greatly Improved and Enlarged. ILLUSTRATED WITH ABOVE TWO HUNDRED COPPERPLATES. VOL. I. INDOCn DISCANT, ET AMENT MEMINlSSE PERITl. EDINBURGH: Printed for J. Balfour and Co. W. Gordon, J. Bell, J. Dickson, C. Elliot, W. Creech, J. McCliesh, A. Bell, J. Hutton, and C. Macfarqjjhar. MDCCLXXVIII. * ■' M.rg r our readers moft fanguine expectations, fuch an Appendix would ftill be found a moft important addition. For even though the work fhould be as perfedt as poflible according to the ftate of arts and fciences at the time of its exhibition, ftill revolutions may happen, and improvements may be made, in various branches both of theoretical and practical knowledge, which an Appendix will give the compilers a proper opportunity of inferting. This acceftion, therefore, to the original plan, our readers will be pleafed to find. In a collection fo large and multifarious as that which is now recommended to the public attention, the critic muft be fevere, and the genius minute, who could flop to animadvert upon every trivial inaccuracy of ftyle. We think it indeed in¬ difpenfably incumbent on every author who would be read with intelligence and pleafure, after fufficiently attending to the nature and importance of what he fub- mits to the public obfervation, that he fhould, in the next degree, regard the vehicle by which it is conveyed. But where the fubje&s are fo indefinitely varied, and where propriety requires that each fhould be expreffed in a manner fuitable to its nature; it can fcarcely be imagined, that the fame exaCtnefs and uniformity fhould equally prevail in this as in compofitions of a nature lefs extenfive and complex. After all, though the compilers are confcious of having done their utmoft to render this work as extenfively and generally ufeful as it could poflibly be ; yet, fince no human production, even from the origin of literature to the prefent period, has ever been found perfeCt in its kind, it would be cruel, if not unjuft, to expeCt abfolute perfection in the prefent attempt. From every candid and be¬ nevolent inquirer after truth, therefore, they hope, that the merit of their in¬ tention and the utility of their plan will in a great meafure atone for fuch trivial or unavoidable faults as may be found in its execution. Such was the fpirit in which one of the nobleft and wifeft of ancient critics perufed his contemporary poets : Verum ubi flura nitent in carmine, non ego paucis Offendar maculis, quas aut incuria fudti, Aut humana parum cavit natura Hor. But where the beauties more in number fliine, I am not angry, when a cafual line (That with fome trivial faults unequal flows) A carelefs hand, or human frailty, (hows. Francis. A A NEW DICT PON ARY O F Arts, Sciences, &c. A A>. a THE charafter of the firftietter of the al- a^h.r.eX'..— phabet in Latin, Engliih, French, and J moft of the prefent languages of Europe. 5 The firft character in the Hebrew alpha¬ bet is called aleph, in the Greek alpha, in the Arabic eleph, and in the Syriac oleph. A has defervedly the firft; place in the alphabet on account of its fimplicity, very little more being necef- fary to its pronunciation than opening the mouth. A, an article. See Article. A, among the ancients, was a numeral letter, and fignified 500; and when a dalh was added on the top, A, 5000. A, in the Julian calendar, is the firft of the feven do- * See minical letters *. It had been in ufe among the Ro- mans long before the eftablilhment of Chriftianity, as f See Nun- the firft of the eight nundinales f litter a; in imitation dhial. whereof it was that the dominical letters were firft in¬ troduced. A is alfo an abbreviature, ufed with different inten¬ tions. Hence, A, among logicians, is ufed to denote an univerfal affirmative propofition; according to the verfe, Afferit A, negat E, verum generaliter ambx: Thus, in the firft figure, a fyllogifm confifting of three univerfal affirmative propofitions, is faid to be in Bar- ba-ra; the A thrice repeated, denoting fo many of the propofitions to be univerfal,