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In found it to be 3.6873 ; and the European hy. adorned upward with many large fugnei or bell acinths to be 3.760. The hyacinth is divided in- shaped flowers, swelling at the base, and cut half to oriental and occidental; the former being very way into fix parts; collected into a large pyramihard and brilliant, so that they are frequently dal' spike of different colours in the varieties ; ranked among the topazes; but when soft, they flowering in April or May. These plants are culare supposed to belong to the garnet kind. Şee tivated with great success in Holland, wbence great GARNET. The hyacinths, however, may general numbers are annually imported into Britain, Eacb ly be diftinguished from the garnets by losing their variety is by the florifts diftinguished either by the colour in the fire, becoming white, and not melt. name of the place where first raifed, or by the ing. There is a kind of yellow-brown hyacintb, perfon who raised them, or the names of illuftriresembling the colour of honey, which is diftin. ous personages, as of kings, generals, poets, and guished from the rest by the remarkableproperty of celebrated ancient historians, gods, goddeffes, &c. not being electrical, and being likewise inferior They are sold by all the seed-dealers. The prices in hardness. Jewellers allow all those gems to be are from three perce per root to L., or L.10, or hyacinths or jacinths, that are of a due hardness more, and some varieties are in such high efteem with the mixed colour above mentioned ; and as among the florists, that L.20 or L.30 will be gives they are of very different beauty and value in their for a single bulb! They are bardy, and will prol. several degrees and mixture of colours, they di- per any where, though the fine kinds require a litvide them into 4 kinds ; 3 of which they call hya- tle fhester during the winter. They may be procinths, but the fourth, very improperly, a ruby. 1. pagated either by feeds or off-sets from the roots. When the stone is in its most perfect state, and of The properties of a good oriental hyacinth are, a a pure and bright Hame-colour, neither red nor ftem, perfectly upright, of moderate length, and so the yellow prevailing, in this state they call it hy- strong and well-proportioned that it will luftain the acintha la belle. 2. When it has an over propor- weight of the forets without bending ; the forets tion of the red, and that of a duskier colour than should be large, swelling below, expanded above, the fine high red in the former, and the yellow and numerous, 10 or 15 at least, but are often 20 that appears in a faint degree in it is not a fine, or 30 in number; and Movid be placed equally bright, and clear, but a dusky brownish yellow, round the ftem, the pedicles on which they grow then they call it the saffron byacinth. 3. Such longer below than above, diminishing gradually in stones as are of a dead whitish yellow, with a very length upward, in fuch a manner as to represent a small proportion of red in them, they call amber pyramid, and each pedicle sufficiently strong to inyacinths. And, 4. When the stone is of a fine support the forets without drooping. The deep red, blended with a dusky and very deep curious in these plants take care never to plant yellow, they call it a rubacelle.' But though the the fine forts two years together in the same bed over proportion of a strong red in this gem has, of earth; for, by planting them every year in á made people refer it to the class of rubies, its fresh bed, the beauty of the flowers is greatly im. evident mixture of yellow shows that it belongs to proved. the hyacinth. The hyacinth la belle is found both (2.) HYACINTHUS, the son of Amyclas king of in the East and West Indies. The oriental is the Sparta, was beloved both by Apollo and Zephy. harder, but the American is often equal to it in rus. The youth showing most inclinatiou to the colour. The rubacelle is found only in the East former, his rival grew jealous; and to be reIndics, and is generally brought over among the venged, one day as Apollo kas playing at the difrubies; but it is of little value; the other varie cus with Hyacinthus, Zephyrus įturned the di. ties are found in Silefia and Bohemia.

reation of a quoit which Apollo bad pitched full HYACINTHIA, in antiquity, fealls held at upon the head of Hyacinthus, who fell down dead. Sparta, in honour of Apollo, and in commemora. Apollo then transformed him into a flower of the tion of his favourite HYACINTHUS. They lasted same name ; and as a farther token of respect inthree days; the first and third whereof were em- ftituted the feasts of HYACINTHIA. ployed in bewailing the

death of Hyacinthus, and (1.) * HYADES. HYADS. 9. l. I'vades.] A watery inced-in feasting and rejoicing.

constellation, HYACINTHINE. adj. [waxı$1@..] Made of Then failors quarter'd heav'n, and found a hyacinths ; refembling byacinths.

(1) HYACINTHUS, HYACINTH, in botany : For ev'ry fix'd and ev'ry wand'ring ítar; A genus of the monogynia order, belonging to The pleiads, hyads.

Dryder. the hexandria class of plants : and in the natural (2.) Hvados, in astronomy, are seven fars in inethod ranking under the roth order, Goronariæ. the bull's head, famous among the poets for The corolla is campanulated, and there are three the bringing of rain. Whence their name 'Tedy, melliferous pores at the top of the germen. There from the Greck'uv, “ to rain." The principal of are fix fpecies; of which the most remarkable is them is in the left eye, by the Arabs called ALDE.

HYACINTHUS ORIENTALIS, the eafterx hya- BARAN. cirih. 'Of this there are a great number of varic (3.) HYADES, in the mythology, the daughters, ties, amounting to some hundreds, each of which of Atlas and Pleione. Their brother Hyas being differs from the rest in 'fome respect or other. torn to pieces by a lioness, they wept for his death 'This plant bath a large, purplish, bulbous root, with such vehemence, that the gods, in compalsending up several narrow erect leaves 8 or so fion, transared them into heaven, and placed, inches long; the flower talk is upright, robust, them in the bull's forehead, where they continue and succulent, from 10 to 15 inches in height; to weep; this constellation being supposed to



presage rain. Others represent the Hyades as * HYBRIDOUS. adj. ['ups; hybrida, Latin.] Bacchus's nurses; and the fame with the Dodo. Begotten between animals of different species.-nides, who fearing the resentment of Juno, and Why such different fpecies should not only mingle Dying from the cruelty of king Lycurgus, were together, but also generate an animal, and yet that translated by Jupiter into heaven.

the hybridous production should not again gene. HYENA. See Canis, Š 1, No vii.

rate, is to me a mystery. Ray. HYENIUS LAPIS, in natural history, a ftone HYBRISTICA, of ['u@gis, injury.] in antiquity, said to be found in the eyes of the hyæna. Pliny a solemn feast held among the Greeks, with facritells us, that those creatures were in old times fices and other ceremonies ; at wbich the men athunted and destroyed for the sake of these stones, tended in the apparel of women, and the women and that it was supposed they gave a man the gift in that of men, to do honour to Venus in quality of prophecy by being put under his tongue. either of a god or goddess, or both. According

* HYALINE. adj. [vare.) Glasly; crystals to others, the hybriftica was a feast celebrated at line, made glass; resembling glass.

Argos, wherein the women, being dressed like men, From heav'n-gate not far, founded in view insulted their husbands, and treated them with all On the clear byaline, the glasly sea. Milton. marks of superiority, in memory of the Agrian

HYALINGE, a town of Sweden, in Bleckin- dames having anciently defended their country gen.

with singular courage against Cleomenes and DeHYALOIDES, in anatomy, the vitreous hu- maratus. Plutarch speaks of this feast in his treamour of the eye, between the tunica retina and tise of the great actions of women. The name, the upea.

he observes, fignifies infamy; which is well acHYBERNACULUM. See BOTANY, Index; commodated to the occasion, wherein the women BULB, and Gemma.

strutted about in men's clothes, while the men (1.) HYBLA, in ancient geography, a town on were obliged to dangle in petticoats. the E. coast of Sicily, called also Hybla Parva, HYCSOs. See EGYPT, 8; ETHIOPIA, Ø 7. Galeotis, and MEGARA; which last name it took (1.) * HYDATIDES. n. . [from'ufwg.] Little from the Megareans, who led thither a colony. In transparent bladders of water in any part; moit Strabo's time, Megara was extinct, but the name common in dropfical persons, from a diftenfion or Hybla remained on account of its excellent honey rupture of the lymph-ducts. Quincy: --All the wanamed from it. It was fituated between Syracuse ter is contained in little bladders, adhering to the and the Leontines. Galeotæ and Megarenfes were liver and peritoneum, known by the name of hythe names of the people, who were of a prophetic datides. Wiseman. fpirit, being the descendants of Galeus the son of (2.) HYDÁTIDES, in medicine, are sometimes Apollo. By the moderns Hybla was called Mel found solitary, and sometimes in clusters, upon the Pah, on account of its excellent honey, and ex- liver and various other parts. traordinary fertility, till it was overwhelmed by HYDATOIDES, the watery humour of the the lava of Ætna; and having then become to eye, between the cornea and the uvea. tally barren,' its name was changed to Mal Pali. HYDATOSCOPIA, a method of foretelling On a second eruption, by a shower of alhes from future events by water. the mountain, it reaflumed its ancient beauty and (1.) HYDE, Edward, earl of Clarendon, and fertility, and for many years called Bel Par; lord high chancellor of England, was descended and last of all, in 1669, it was again laid under an from an ancient family in Cheshire, and born at ocean of fire, and reduced to the most wretched Dinton near Hindon, in Wiltshire, in 1608. He sterility; fince which time it is again known by was entered of Magdalen hall, Oxford, where, in the appellation of Mal:Paff. However, the lava 1625, he took the degree of A. B, and afterwards in its course over this beautiful country bas left tudied the law in the Middle Tempie. In the several little islands or hillocks, just sufficient to parliament which began at Westminster, April 10, show what it formerly was. These make a fingu. 1640, he served for Wotton Ballet in Wiltshire. lar appearance, in all the bloom of the most luxu. But that parliament being soon after diisolved, he riant vegetation, surrounded and rendered almoft was chosen for Saltaíh in Cornwall in the long inaccessible by large fields of black and rugged parliament. His abilities were much taken notice laya. i

of, and he was employed in several committees (2.) HYBLA MAJOR, in ancient geography, a to examine into divers grievances; but at last betown of Italy, in the tract lying between mount ing diffatisfied with the proceedings in the parliaAtna and the river Symerhus. In. Pausanias's ment, he retired to the king, and was made chan. time it was defolate.

cellor of the exchequer, a privy counsellor, and (3.) HYBLA Minor, or HERÆ, an inland town knight. Upon the decline of the king's caule, he of Sicily, lituated between the rivers Oanus and went to France, where, after the death of king Herminias; now called RAGUSA.

Charles I. he was sworn of the privy. council to HYBLÆI COLLES, small eminences at the springs Charles II. In 1649, he and lord Cottington were of the Albus, near HYBLA, N° 1. famous for their sent ambassadors extraordinary into Spain, and in variety of flowers, especially thyme; the honey 1657 he was constituted lord high chancellor of gathered from which was by the ancients reckon- England. In 1659, the duke of York fell in love ed the best in the worlä, excepting that of Hymet- with Mrs Anne Hyde, the lord chancellor's eldest tus in Attica.

daughter, but carefully concealed the amour both: HYBRIDÆ PLANTÆ. See Botany, Index from the king and chancellor. After the restora

HYBRID PLANTS. 3. and Glosary. The tion, however, he fulfilled his promise of mar. feeds of hybrid plants will not propagate. riage, and her father was chosea chancellor of the


university of Oxford ; soon after created baron helped to ruin him by such buffoogeries as he del. Hindon, viscount Cornbury, and earl of Claren- pised. He was a much greater, perhaps a much don ; and on the death of Henry lord Falkland, happier 'man, alone and in exile, than Charles was made lord lieutenant of Oxfordshire. He II. upon his throne.” His character is thus drawn took care neither to load the king's prerogative, by Mr Walpole: “Sir Edward Hyde, who opnor encroach upon the liberties of the people; posed an arbitrary court, and embraced the parand therefore would not set aside the petition of ty of an afflicted one, must be allowed to have ac. right, nor endeavour to raife the star-chamber or ed confcientiously. A better proof was his behigh-commission courts again ; nor did he at- haviour on the rettoration, when the torrent of an tempt to repeal the bill for triennial parliaments; infatuated nation entreated the king and his minisand when he might have obtained two millions ter to be absolute. Had Clarendon fought nothing for a standing revenue, he asked only 1,200,000l. but power, his power had never cealed. A cora year, which he thought would still keep the rupted court and a blinded populace were less the king dependent upon his parliament. In this causes of the chancellor's fall, than an ungrateful just conduct he is said to have been influenced king, who could not pardon his lordship's haring by his father's dying advice. Some years be- refused to accept for him the slavery of his counfore, when he began to grow eminent in the try. Like justice herself, he held the balarce be. law, he went down to vilit his father in Wilt. tween the necessary power of the supreme mashire; who, one day as they were walking in gistrate and the interests of the people. This nethe fields, observed to him, that men of his ver dying obligation his cotemporaries were taught profession were apt to stretch the prerogative too to overlook and clamour against, till they removed sar, and to injure liberty; but charged him, if the only man, who, if he could, would have corever he came to any eminence in his profession, rected his master's evil government. Almost evenever to facrifice the laws and liberty of his ry virtue of a minister made hischarácter venerable. country to his own intereft, or the will of his As an historian, he seems more exceptionable. prince; he repeated his advice twice; and im- His majelty and eloquence,' his power of painting mediately falling into a fit of an apoplexy, died in characters, his knowledge of his subject, ratik him a few hours. This circuinstance had a lasting in. in the first class of writers; yet he has both great fluence upon him. In 1662, he opposed a pro- and little faults. Of the latter, his stories of posal for the king's marriage with the infanta of ghosts and omens are not to be defended. His Portugal, and the sale of Dunkirk. In 1663, ar- capital fault is his whole work being a laboured sticles of high treason were exhibited against him justification of king Charles. If he relates faults, by the earl of Bristol ; but they were rejected by some palliating epithet always slides in ; and he the house of lords. In 1664, he opposed the war has the art of breaking his darkest shades with with Holland. In Aug. 1667, he was removed gleams of light that take off all impression of hor. from his post of lord chancellor, and in Novem. ror. One may pronounce on my lord Clarendon, ber following impeached of high treason and in his double capacity of statesman and historian, other crimes and misdemeanors, by the house of that he acted for liberty, but wrote for prerogacommons; upon which he retired into France, tive.when a bill was passed for banishing him from the (2.) HYDE, Henry, E. of Clarendon, the son of king's dominions. See ENGLAND, § 55, 56. He the chancellor (N° 1.}; was born in 1638. He resided at Rouen in Normandy; and dying there took the degree of M. A. at Oxford, after the re. in 1674, his body was brought to England, and storation, which he co-operated with his father in interred in Westminster Abbey. He wrote, 1. A forwarding (having early acquired the art of cyhistory of the rebellion, 3 vols. folio, and 6 vois. phering), and was made chaniberlain to the queen. 8v0; a 2d part of which was lately bequeathed to The perfecution his father suffered from the cour, the public by his lordship’s descendant, the late tiers led him to join the opposition, among whom lord Hyde and Cornbury. 2. A letter to the duke he made a considerable figure as a public speaker, of York, and another to the duchess of York, in both houses; for he continued his oppolition upon their embracing the Romih religion. 3. An to the court measures, after succeeding his father intwer to Hobbes's Leviathan. A. A history of the in 16747 But, upon his opposing the bill of exrebellion and civil wars in Ireland, 8vo. and some clufion, he was made a privy counsellor in 1680. other works. The Rev. Mr Granger, in his Bio. On the accellion of James II, he was made lord graphical History of England, observes, that "the privy seal, and lord lieut. of Ireland, but was too virtue of the earl of Clarendon was of too stubborn zealous a protestant to be long continued by that a nature for the age of Charles II. Could he have bigoted monarch in these offices. Upon the reheen content to have endlaved millions, he might volution, however, he refused to take the oaths fave been more a monarch than an unprincely to K. William, upon which he was imprisoned in king. But lie did not only look upon himself as the Tower for a few months. After this he lived the guardian of the laws and liberties of his coun- retired at his country feat, where he died in 1709, try, but had also a pride in his nature that was aged 71. His State Letters during his government above vice; and chose rather to be a victim himfelt, of Ireland, and his Diary for 1687, 8, 9, and go, than to facrifice his integrity. He had only one were published in 2 vols. Ato in 1763, from the pourt to act, which was that of an koneit' man. Clarendon press, Oxford. liis enemies allowed themselves a much greater la (3.) HYDE, Thomas, D. D. professor of Arabic citude; they loaded him with calumnies, blamed ' at Oxford, and one of the must learned writers bin even for their own errors ard misconduct, and of the 17th century, was born in 1636.; and ftudi.

کی وفا

ed first at Cambridge, and afterwards at Oxford. HYDESPARK, a township of Vermont, in Or. Before he was 18 years of age, he was sent from leans county, 126 miles N. by E. of Bennington, Cambridge to London to affiit Mr Brian Walton HYDNUM, in botany: A genus of the natu

the great work of the Polyglot Bible; and ral order of fungi, belonging to the cryptogamia about that period undertook to transcribe the class of plants. The fungus is echinated or prickPerfian Pentateuch out of the Hebrew characters, ly on the under lide. One of the species, viz. which Abp. Uther, who well knew the difficulty HYDNUM IMBRICATUM, is a native of Britain, of the undertaking, pronounced to be an impoffi- and is found in woods. It has a convex hat, tiled, ble talk to a native Perlian. After he had bappi- standing on a smooth pillar, of a pale flesh colour, ly succeeded in this, he affifted in correcting feve. with white prickles. It is eaten in Italy, and is ral parts of Mr Walton's work, for which he was said to be of a very delicate taste. perfectly qualified. He was made archdeacon of (1.) * HYDRA. 11. f. (hydra, Lat.] A monster Gloucester, canon of Chrift-church, head-keeper with many beads Nain by Hercules: whence any of the Bodleian library, and profeffor of Hebrew multiplicity of evils is termed a hydra. and Arabic, in the university of Oxford. - He

New rebellions raise was interpreter and secretary of the Oriental lan Their hydra heads, and the false north displays guages, during the reigns of Charles II. James II. Her broken league to imp her ferpent wings. and William III. ; and was perfectly qualified to

Milton. fill his post, as he could converse in all these lan More formidable hydra ftands within, guages. There never was an Englishman in his Whose jaws with iron teeth severely grin. Gtuation of life who made so great a progress;

Dryden's Æn. but his mind was. so engrossed by his beloved

Subdue ftudies, that he did not appear to advantage in The hydra of the many-headed hisling crew. common conversation. Of all his learned works

Dryden. (the very catalogue of which, as observed by (2.) HYDRA, in fabulous hiftory, was a ferAnth. Wood, is a curiosity), his Religio Veterum pent in the marsh of Lerna, in Peloponnesus, Perfarum is the most celebrated. Dr. Gregory with many heads, one of which being cut off, Sharpe, the late learned and ingenious master of another, or two others, immediately succeeded the Temple, has collected feveral of his pieces in its place, unless the wound was instantly cau. formerly printed, and republished-them, with terized. , Hercules attacked this monster; and some additional dissertations, and his life prefixed, having caused Jolaus to hew down wood for in two elegant vols. 4to. He died on the 18th Aaming brands, as he cut off the the heads 'he Feb. 1702. Among his other works are, 1. A applied the brands to the wounds, by which means Latin translation of Ulug Beig's observations on he destroyed the Hydra. This Hydra is supposed the longitude and latitude of the fixed stars; and, to have been a multitude of serpents which in2. A catalogue of the printed books in the Bod- fefted the marshes of Lerna near Mycene, and leian library,

seemed to multiply as they were destroyed. Her(4.) HYDE, a maritime county of N. Carolina, cules, with the affiftance of his companions, in Newbern district; bounded on the E. by, the cleared the country of them, by burning the reeds Atlantic, S. by Carteret, w. by Beaufort, and in which they lodged. N. by Tyrrel counties. It contained, 3072-citi (3.) HYDRA, in astronomy, a southern constelzens and 1048. Naves in 1795.

lation, consisting of a number of stars, imagined (5.-1.) HYDE, 3 English villages, in Berkshire, to represent a water ferpent. See ASTRONOMY, Dorsetshire, and Warwickshire.

$ $48. HYDERALY, or All, a famous Indian usurper, (4.) HYDRA, in geography, an island in the Greand for some time a formidable opponent of the cian Archipelago. Lon. 43. 25. E. of Ferro. Lat. British interest in the East Indies. He was the 37. 15. N. son of a killader, or governor of a fort, to the king (5.) HYDRA, in zoology, a genus of the order of Mysore, and acquired his skill in military tactics of zoophyta, belonging to the class of vermes. in the French army. In 1753, he diftinguished There are several species, known by the general hiinself as their auxiliary at Trichinopoly. In name of polypes. See ANINALCULE, 55, 8; and 1763, being commander of the Mysore army, he POLYPUS, N° II. dethroned his sovereign, and governed the king (1.) HYDRABAD, a province of Hindooftan, dom under the title of regent. In the wars with now called GolCONDA, which see. the British between 1967 and 1770, he displayed (2.) HYDRABAD, the capital of Golconda and great spirit and abilities; but in 1991 he was to- of the Deccan, a large city, feated in a plain, on tally defeated by the Mahrattahs. During the the banks of a river that runs into the Kiftna. It peace that followed he greatly improved his army is surrounded with walls, and defended with towand revenues,, In 3780, he made an irruption in- ers; and contains above 100,000 inhabitants. It to the Carnatic, and cut to pieces a British de- is 690 miles S. of Delhi, and 270 NNW. of Matachment under Col. Baillie; but his victorious dras, according to Mr Cruttwell; but Dr Brookes career was, toon stopt by Sir Eyre Coote, who, and J. Walker make it 352 miles N. by E. of that with a force scarce exceeding 7cco men, gained a city. Lon. 78. 52. E. Lat 17. 17. N. complete victory over Ilyder Ali at the head of (3.) HYDRABAD, a fort of Hindoostan Proper, 750,000, and defeated bin 6 times succesively at- in the province of Sindy, the residence of a Materwards, the laft of which vietorics was obtained hometan prince, who is tributary to the king of or the 7th June 1782. Hyder died in Dec. 1783, Candahar. It is situate oo the Indus, near Nur. Eve months before Gen. Cuote.

ferpour. Lon, 69. 30. E. Lat. 23.29. N.

lap, ốc.

(1.) * HYDRAGOGUES. n. š. (iswg and ayw; HYDRENTEROCELE, in surgery, a fpecies of bydragogue, Fr.) Such medicines as occafion the hernia, wherein the intestines descend into the discharge of watery humours, which is generally fcrotum, together with a quantity of water. the case of the ftronger catharticks, because they (1.) HYDRIA, or IDRIA, a town of Germany take moft forcibly the bowels and their append- in Cardiola, 9 miles SSW. of Crainburg, and 154 ages. Quincy.

of Vienna. (2.) HYDRAGOGUÉS, (from üdwg, water, anda yring (2.) HYDRIA, a river of Carniola, which rises to draw, are used in dropfies; but the original near Gewelb, and runs past the town of HYDRIA use of the term proceeded upon a mistaken fup. (N° 1.), into the Lifonzo. pofition, that every purgative had some particular (1.) HYDROCELE. n. f. [usponnan; hydrocele, humour which it would evacuate, and which Fr.] A watery rupture. could not be evacuated by any other. It is now, (2.) HYDROCELE, in surgery, denotes any her. however, discovered, that all strong purgatives nia arifing froin water ; but is particularly used will prove bydragogues, if given in large quantity, for such a one of the scrotum, which sometimes or in weak conftitutions. The principal medicines, grows to the size of one's head, without pain, but recommended as hydragogues, are the juice of el. exceedingly troublesome. See SURGERY, Index. der, the roots of iris, foldannella, mechoacán, ja (1.) * HYDROCEPHALUS, n. [08wp and ze

paan.) A dropfy in the head. A hydrocephalus, or HYDRANGEA, in botany, a genus of the di- dropsy of the head, is only incurable when the gynia order, belonging to the decandria class of ferum is extravasated into the ventricles of the plants; and in the natural method ranking under brain. Arbuthnot on Diet: the 13th order, Succulenta. The capsule is bilo (2.) HYDROCEPHALUS is a preternatural diftencular, biroftrated, and cut round, or parting ho. fion of the head to an uncommon fize, by a ftag. rizontally. There is but one species, viz. nation and extravafation of the lymph; which,

HYDRANGEA ARBORESCENS, a native of North when collected in the inside of the cranium, is America, from whence it has lately been brought then térmed internals as that collected on the to Europe, and is preserved in gardens, more for outside is termed external. See MEDICINE, the sake of variety than beauty. It rises about 3

Index. feet high; and has many soft pithy stalks, gar


two oblong heart-shaped leaves placed a genus of the enneandria order, belonging to the opposite. The flowers are produced at the top diæcia class of plants; and in the natural method of the stalks in a corymbus. They are white, ranking under the first order, Palme. The spa. composed of 5 petals with 10 stamina surrounding tha of the male is diphyllous; the calyx trifid; the style. These plants are eafily propagated by the corolla tripetalous; the three inferior filaments parting the roots, in the end of October. They ftyliferous. The female całyx trifid; the corolla thrive best in a moist foil, but must be sheltered tripetalous; the styles fix; the capsule has 6 cells, from frost.

and is polyfpermous inferior. There is only one HYDRARGYRUM, mercury, or quicksilver; fpecies, a native of Britain, growing in now so called from swp, water, and agjupos, Giver; q.d. streams and wet ditches. It has kidney-shaped water of hlver, on account of its refembling liquid leaves, thick, smooth, and of a brownish green or melted filver.

Colour with white bloffoms. There is a variety HYDRASTIS, in botany, a genus of the poly- with double flowers of a very fweet smell. gamia order, belonging to the polyandria class HYDROCOTYLE, WATER NAVELWORT, a of plants, and in the natural method ranking genus of the digynia order, beiðnging to the pen. with those of which the order is doubtful. There tandria class of plants; and in the natural method is neither calyx nor nectarium ; there are 3 ranking under the 45th order, Umbellata. The petals; and the berry is composed of monofper. umbel is fimple; the involucrum tetraphyllous; mous acini.

the petals entire ; the seeds are half round and * HYDRAULICAL. adj. [from hydraulick.] compreffed. There are several species, none of

(1.) * HYDRAULICK.S Relating to the con- which are ever cultivated in gardens. One of veyance of water through pipes.-Among the en- them, a native of Britain, growing in marity gines in which the air is useful, pumps may be ac- grounds, is fuppofed by the farmers to occafios counted, and other hydraulical engines. Derham. the rot in sheep. The leaves have central learn -We have employed a virtuoso to make an hy- stalks, with about s fowers in a randle; the pedraulick engine, in which a chymical liquor, re- tals are of a reddith white. fembling blood, is driven through elaftick chan HYDROGENE GAS, or See CHEMISTRY, nels. Arbuthnot and Pope.

HYDROGENOUS GAS, ) Index. Citizen Le. (21) * HYDRAULICKS, n. f. (ofwg, water, and bon, an ingenious French chemist, has contrived cur@, a pipe.] The science of conveying water a method of producing from hydrogene gas not through pipes or conduits.

only a very clear light, but a very strong heat, (3.) HYDRAULICS comprehend the science of Judging both from the fimplicity and extraorthe motion of Auids, and the construction of all dinary effects of this experiment (says a Frenada kinds of instruments and machines relating there writer), it seems to be an application of the pow. io. See HYDROSTATICS, Part II.

eis of chemniftry to the combustion of wood and HYDRAULICO-PNEUMATICAL, adj. a term ap- ariz! 'ubstances. Under a glass globe is placed a plied to engines, which raise water by means of light of the brightest and most steady kind, which See HUDROSTATICS, Part II. Se&. VII.- X. ali fupplies the place of an active and worm fire.


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