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ment is introduced into this hole, leaving
the index end exposed to view below the
door of the oven; the channel may, how
ever, he made in any other convenient
part
of the oven.

MR. MAYER OPPENHEIM'S, (LONDON,) for
a Red Transparent Glass.

The nature of this invention may be thus described: We are directed to take of the materials that compound the flintglass, to purify them, and to add to them an equal quantity of brann-stein, or braun-stein, a species, we presume, of manganese ore; mix them well together, and place them in a reverberatory fur nace for thirty-six hours, when the calci nation will be completed. This calcination must be cohobated, or repeatedly exposed to the action of warm water, till no saline particles remain, when it may be dried, and an equal quantity of salammoniac put to it; and it is then to be levigated, or reduced to powder, by the help of distilled vinegar. It is now to be

dried and put into a retort, well secured, placed in a sand furnace, and exposed eighteen hours to a fire sufficiently strong for sublimation; after this, the calx is to be separated from the sublimed matter. To this sublimate, an equal quantity of sal-ammoniac is to be added, and again levigated in the same manner as before directed. The mixture is to he brought back into the retort, and a fire applied that shall be strong enough to convert the braun-stein to a liquid. Of this liquid, half an ounce is to be taken, and to this thirty grains of dissolved Dutch gold are to be added. This quantity is to be mixed with every pound of the fint materials, and the mixture being. placed in a reverberatory furnace, there will be produced a white flint glass, which, on a second exposure to the same heat, will be red and transparent.

The above-named compounds of the flint-glass, contain two parts of lead, one part of sand, and one part of saltpetra or borax,

VARIETIES, LITERARY AND PHILOSOPHICAL.
Including Notices of Works in Hand, Domestic and Foreign.
Authentic Communications for this Article will always be thankfully received.

R. DRAKE will shortly publish, in

will make its appearance in the course

D four vols. 8vo. under the title of of the present month.

the Gleaner, a selection of the best Mr. CHITTY, of the Middle Temple, essays from those periodical papers has announced his intention of delivering, which have not been included in the last immediately after Michaelmas Term, edition of the British Essayists. It will a practical course of Lectures on Com be elegantly printed on demy, and on mercial Law. This series will compre royal paper, to match with the recent hend dissertations from the best writers 8vo. editions of the Tailer, Spectator, and on the Lex Mercatoria among nations, Guardian; and will afterwards be re- as acknowledged by our municipal law; printed uniform with the British Essayists. on the commercial privileges and dis A Life of the late Arthur Murphy, esq. abilities of aliens; on the modes adopted by JESSE FOOT, esq. his executor, is in by the different branches of the British the press. It will form a quarto vo- legislature for the promotion and regu lume, and contain the Epistolary Correlation of foreign and domestic commerce; spondence of Mr. Murphy with many distinguished persons, during a period of more than fifty years,

An Account of the Isle of Man, comprising its history, antiquities, and present state, from the pen of Mr. GEORGE WOODS, will be ready for publication in a few weeks.

The History of Lynn, civil, commercial, biographical, political, and military, from the earliest accounts to the present time, by WILLIAM RICHARDS, A. M. will shortly be completed in one large 8vo,

volume.

Mr. MARRAT's work on Mechanics,

and on the spirit and effect of all the various mercantile contracts. The ob ject of these lectures is not only to assist, by their practical utility, the different members of the legal profession, but also to arrange these extensive and important branches of the British Constitution in a clear and comprehensive point of view, for the information of those gentlemen who may be preparing to embark either in commercial pursuits, or in the public service of their country. The lectures will be delivered twice a week, in the evenings of Monday and Thursday, in Lincoln's Inn Hall, which the Honourable

Society

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Society have liberally permitted the use of, in furtherance of Mr. Chitty's plan. The Rev. Mr. DAVIES, of Campton Academy, is printing a collection of Reading Exercises for Youth of both Sexes.

Dr. GEORGE REES is preparing for the press, a new edition of his book on Dis orders of the Stomach, in which many additional cases and important observations will be introduced.'

Mr. CARY is engraving on ten folio plates, a Portraiture of the Heavens as they appear to the naked Eye, constructed for the use of students in astronomy, by the Rev. Francis Wollaston, F.R.S. Sir RICHARD PHILLIPS having had his attention called to the subject of Grand and Pettit Juries while he was serving the office of Sheriff, is about to print some practical Instructions to assist Juries in the correct discharge of their important duties.

On the first of January will be published, a Description of the ancient Terracottas in the British Museumn, by TAYLOR COMBE, esq. illustrated with fortyone plates, engraved after the drawings of William Alexander, esq.

Chronological Memoirs of Mahonmedan History, from its earliest period to the establishment of the House of Teymur in Hindoostan, is in great for wardness, translated from the Persian by D. PRICE, esq. of the Bombay Military Establishment.

Preparing for the press, an extensive Military Historical Work, in quarto, by Captain T. H. COOPER, author of the Light Infantry Guide, Military Cabinet, &c.; being a collection of all the land battles fought in the Messenian, Lydi. an, Sacred, Peloponnesian, Corinthian, Hetruscan, Tarentine, Punic, Sardimian, Social, Macedonian, Jugurthine, Mithridatic, Civil, Servile, Peruvian, and other wars, from the foundation of Rome to the birth of Christ; embellished with about eighty plans of the principal battles, and maps shewing the routes and places of actions, &c. &c.

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the press, a new and enlarged edition of a Brief Examination into the Increase of the Commerce and Revenue of Great Britain, brought down to the present time.

On the first of January will be pub lished the first Number of a new edition of the Book of Common Prayer, printed on a large new beautiful type, and em bellished with elegant engravings, with Notes illustrative and commentary, by the Rev. J. COOKSON, M. A. rector of Colman, and Prior's Dean, &c.

Mr. MYERS, of the Royal Military Academy, will shortly complete an In troduction to Historical, Physical, and Political Geography; accompanied with maps, and adapted to the higher classes of pupils, under both public and private' tuition. Mr. M.'s inducement to this undertaking, and his guide in its accom plishment, has been utility; and to at tain this object he has condensed into one moderate-sized octavo volume, the most valuable matter of more extensive systems. In the construction of the maps, particular attention is paid to simplicity, perspicuity, and accuracy; and it is presumed that these qualities, so essential in every elementary treatise, will be found to prevail in a superior de gree throughout the whole performance.

The Rev. JOSIAH PRATT, who has recently published a collection of the Works of Bishop Hall, is engaged on a Life of that prelate; but he is not able to fix any time for the appearance of the publication, as from the nature of the materials and their bearings on the history of religion in England, and on many points warmly controverted at the present day, much research and delibera tion are required.

The public may shortly expect a Life of Sir Michael Forster, one of the Judges of the Court of King's Bench, originally written for the new edition of the Biogra phia Britannica,while that work was under the superintendance of the late Dr. KIPPIS.

Mr. MALCOLM has in the press, a new volume of Anecdotes of the Manners, Customs, Dress, Amusements, &c. of the Citizens of London, from the time of the

Romans to 1699.

Mr. CROMEK will speedily publish, Remains of Nithsdale and Galloway Song, with historical and traditional notices relative to the Manners and Cus toms of the Peasantry.

A new edition of TOPLADY'S Historic Proof of the Doctrinal Calvinism of the Church of England, including a brief

account

account of eminent persons before and since the Reformation,in two large volumes quarto, embellished with two hundred portraits, will be published in the course of the ensuing year.

Mr. J. CARTER is making a series of Drawings of York Cathedral, for Sir M. Sykes, bart; which, when finished, will form the largest and most elaborate undertaking of the kind yet gone into in this kingdom. The drawings already finished (and done to the Society of Antiquaries' Cathedral scale) are, I. Plan; II. Foun dation ditto; III. West Elevation; IV. Detail of ditto to a larger scale; V. South Side; VI. Detail of ditto to a larger scale; VII. Longitudinal section, from West to East. Size of the drawings, $ feet 3 inches by 2 feet.

Mr. SMART is preparing for the press, a Guide to Parsing; which, it is expected, will furnish material assistance to the study of English grammar, and the above necessary exercise, particularly in school classes. Mr. Murray's arrangement will be followed.

Mr. JoHNES, of Hafod, has engaged Mr. Stothard, the Royal Academician, to paint some splendid decorations at his seat, which are already begun.

Mr. GUTCH, of Bristol, has published a Catalogue of Books, including nume rous rare and curious articles, selected from the libraries of the late John Innys, esq., Rev. J. Whitaker, Richard Gough, esq., Mr. Woolmer, of Exeter, Robert Jones Allard, esq. &c. Such an extensive collection is highly creditable to the bookseller, as well as to the citizens of Bristol, who have by their encourage ment stimulated him in his endeavours, We are happy to see such establishments meet with success in most of our principal provincial cities and towns.

The Rev. J. FAWCETT has in the press, the Devotional Family Bible, with copious notes and illustrations, partly original and partly selected from the most approved expositors, ancient and modern, with a devotional exercise at the end of every chapter. It will be comprised in two volumes quarto.

Mr. CHARLES EICHHORN will shortly put to press, a translation of Gessner's pastoral novel, entitled Daphnis, intended for the use of German and English scho-Jars, with an interlineary translation, and the English elegantly rendered at the foot of each page.

Dr. HOOPER will, in a few days, publish the first fasciculus of his long-promised Anatomical Atlas.

The engravings for a Chinese Dic tionary, of about seven thousand charac ters, are commenced under the superin tendance of Dr. MONTUCCI. The work will be translated into Latin, French, and English, in compliance with the de sire of the East India Company, and will, it is hoped, be completed in five years.

Sir ROBERT WILSON has in the press, in one volume quarto, Brief Remarks on the Character and Composition of the Russian Army, and a sketch of the Cam paign in Poland in 1806 and 7, from ob servations inade by him when he accompanied Lord Hutchinson to the head. quarters of the Emperor Alexander.

In our last an intention was announced to indict certain persons for conspiring against the property of the Medical Journal. The crime, however, has carried its punishment so fully along with it, that an appeal to law would be thought vindictive and cruel. Of the New Medical and Physical Journal, as it is called, we are assured that not a hundred copies were sold, perhaps not fifty, or not enough to pay for the fine paper. used for the covers; whereas of the Medical and Physical Journal, not only the regular number of copies was sold last month, but also nearly fifty copies in addition to the usual number! Such is the confidence of the faculty in the editors, Dr. Fothergill and Mr. Royston, and such the sense of justice in an enlightened public!

Mr. MANNING is now at Canton, in China, and has been there five years, learning the language, in the dress of the country, with a view to penetrate the interior. He is an able man, and has so adapted himself to the manners and feelings of the Chinese, that he is scarcely to be distinguished from the natives, even by natives. We understand that a native Chinese lady is now in London; but she lives in retirement.

From the very extraordinary produce of one potatoe planted whole, it is evi dent that the cultivation of that useful root in this country, is merely in its infancy. In the latter end of June last, a gentleman residing in Sloane-square, planted in his garden a new species of potatoe, which he brought last spring from the "Alleghany mountains in North America; and, by a peculiar mode of cultivation, there grew from the original parent upwards of one hundred stems, each measuring in length about six feet six inches. Lately these steins were dug, when the produce weighed

2316. whereas the seed potatoe did not weigh quite two ounces. Each of the potatoes, on an average, measured six inches in length, and the same in circumference. It is of a red colour, and is remarkably dry and mealy.

The small bells set a-ringing by means of DE Luc's electric column, continued ringing on the evening of the 24th of August, and had been doing so, without stopping, for a period of 152 days and a half. This long continuance renders it not improbable that the weight of the clapper may be so adapted to the power of the apparatus, as to cause small bells to continue ringing for years together without intermission.

Sir H. C. ENGLEFIELD recommends a new mountain barometer, in which the cistern has a bottom of leather, on which a screw presses in the usual mode, so as to force the mercury nearly to the top of the tube when packed for carriage. This screw is to be unscrewed as far as it can, when the barometer is prepared for use; and the leather bag is so adjusted, that there can be no reason to fear that the capacity of the cistern thus unscrewed for use, will ever be sensibly different from itself at different times.

Dr. SATTERLEY's Course of Clinical instruction, at the Middlesex Hospital, began on the first of November.

Dr. Young will begin, in February, at the same Hospital, a Course of Lectures on Physiology, and on the most important parts of the Practice of Physic. The annual Courses of Lectures, at the Surry Institution, Blackfriar's Bridge, commenced on the fifteenth ult, and will be continued every succeeding Monday and Thursday evenings, at seven o'clock, during the season. The following gentlemen have been engaged for the respective departments, viz.: Zoology, GEORGE SHAW, M. D. F.R.S.; Music, Mr. S. WESLEY; Zoonomy, JOHN MA. sox Good, esq.; the Chemistry of the Arts, FREDERIC Accus, M.R.I.A.; Natural Philosophy and Astronomy, Mr. HARDIE.

Mr. SINGER'S Lectures on the Experimental Sciences, will recommence in a short time at the Institution, No. 3, Prince's-street, Cavendish-square. The object of this establishment, is to facilitate the attainment of experimental knowledge, by combining the advantages of private instruction with the facility of public lectures.

FRANCE.

been completely successful in several parts of the district of Tarascon, situated not less than ten miles from the coast, and it has been found the most profitable crop that could be raised. One hectare has produced 22 quintals of matter, at 180 francs per quintal; and 90 hectolitres of seed, at 24 francs each, making a total of 6120 francs; while the expences amount only to 774. Moist soils, and those contiguous to them, have always been found most favourable to this culture; but the distance of this successful experiment from the sea renders it remarkable,

GERMANY.

It is in contemplation to extend the plan of the institution established at Vienna, by the appellation of the Oriental Academy. It was founded in 1754, by Prince Kaunitz, then prime minister, under the auspices of the Empress Maria Theresa. It has produced a considerable number of eminent oriental scholars, many of whom have been em‐ ployed in the legation to Constantinople, and published many works of great interest on Eastern literature.

The University of Halle has received an augmentation of its allowances, to be expended on the library, the botanic garden, the cabinet of natural history, and the salaries of professors. number of young students expected in The that university will be increased by those from Prussia, the government having given all its subjects permission to frequent this seat of learning.

Carinthia, a terrible rain-spout descended According to accounts from Illyrian on the night between the 27th and 28th of August, at Hermajor and its vicinity, threatening destruction to the whole village. The water flowed into the market-place and its neighbourhood so high, as to penetrate the windows of the first floors.

More than fifty persons were hurried away by the torrent; many of whom were alive, and called piteously for assistance, which no one could afford. All the bridges, and twelve houses, were washed away, and a great quantity of cattle perished in the fields.

A Bavarian engineer has invented a method of constructing wooden bridges, which, for strength and solidity, promise a duration of several centuries. They are likewise remarkable for the elegance of their form and the width of their arches. One consisting of a single arch 200 feet wide has been thrown over the river

The cultivation of the soda-plant bas Roth. Another 286 feet wide has been

made

made for a large city. The arches may be so constructed as to admit ships of war, or merchant vessels, to pass through them, an aperture being made in the centre which can be opened and shut at pleasure. The bridges may be taken to pieces in two days, if necessary, to stop the progress of an enemy, or for any other purpose.

ITALY.

An account of a new and dreadful eruption of Vesuvius, is given in the following letter from Naples, dated September 24:-The recent eruption will make the year 1810 an epoch in the annals of Vesuvius, on account of the manner in which it began, and the disasters it has produced. It is considered as a very extraordinary circumstance that this eruption was not preceded by the usual indications; every convulsion of Vesuvius being previously announced by the drying-up of the wells of Naples. This phenomenon did not take place on this occasion; and, to the great surprise of the inhabitants, Vesuvius began to emit flames on the night of the 10th of September. On the morning of the 11th, the flames became more intense, and the lava began to flow from the east and south-east sides of the mountain. Towards evening the conflagration in creased, and about twilight two grand streains of fire were seen to flow down the ridge of the volcano: night produced no change in this state of things. On the morning of the 12th, a hollow sound was heard, and kept increasing; the fire and smoke likewise augmented in intensity, and towards evening the horizon was obscured. The breeze, usual in these parts, having blown from the southeast, dissipated the accumulated clouds. The mountain continued to vomit lava and a dense smoke, which even at a distance was strongly sulphureous; the hollow noise in the sides of the mountain continued to increase. Curious to witness, as near as possible, one of the most astonishing phenomena of nature, and forgetting the misfortune of Pliny, I set out from Naples, and at eight in the evening I reached Portici. From thence to the summit of the mountain, the road is long and difficult. About half way there is a hermitage, which has long afforded refuge and shelter to the traveller; a good hermit has there fixed his residence, and for a moderate sum furnishes refreshments, which to the fatigued tra velier are worth their weight in gold. The environs of this hermitage produce

the famous wine called Lachryma Christi From the hermitage to the foot of the cave, there is a fong quarter of a league of road, tolerably good; but in order to reach from thence the crater, it is neces sary to climb a mountain of cinders, where at every step you sink up to the midleg. It took my companions, myself, and our guides, two hours to make this ascent; and it was already midnight when we reached the crater. The fire of the volcano served us for a torch; the noise had totally ceased for two hours; the flame had also considerably decreased: these circumstances aug. mented our security, and supplied us with the necessary confidence in traversing such dangerous ground. We ap proached as near as the heat would permit, and set fire to the sticks of our guides in the lava, which slowly ran through the hollows of the crater. The surface of this inflamed matter nearly resembles metal in a state of fasion; but as it flows, it carries a kind of scum, which hardens as it cools, and then forms masses of scoria, which dash against each other, and roll, all on fire, with noise, to the foot of the mountain. Strong fumes of sulphuric acid gas arise in abundance from these scoria, and by their caustic and penetrating qualities render respi ration difficult. We seemed to be pretty secure in this situation, and were far from thinking of retiring, when a fright ful explosion, which projected into the air fragments of burning rocks to the distance of more than 100 fathoms, reminded us of the danger to which we were exposed. None of us hesitated a moment to retreat; and in five minutes we cleared in our descent a space which we had taken two hours to climb. We had not reached the hermitage before a noise more frightful than ever was heard; and the volcano, in all its fury, began to throw up a mass equal to some thousand cart-loads of stones, and fragments of burning rocks, with a force which it would be difficult to calculate. As the projection was vertical, almost the whole of this burning mass fell back again into the mouth of the volcano, which vomited it forth anew to receive it again, with the exception of some fragments, which, flying off, fell at a distance, and alarmed the inquisitive spec

tator.

The 13th commenced with nearly the same appearances as those of the preceding day. The volcano was tranquil, and the lava ran slowly in the channels which it had formed during the night;

but

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