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Containing a View of the Revolution in that Country, from the Capture of Nice by the French Republic, to the expulfion of Pius VI. from the Ecclefiaftical State: Likewife pointing out the matchlefs Works of Art which till embellifh Pifa, Florence, Siena, Rome, Naples, Bologna, Venice, &c. Alfo, fpecifying the expentes incurred by refiding in various parts of Italy, France, &c. fo that perfons who vilit the Continent, from economical motives, may felect the moft eligible places for a permanent refidence. With INSTRUCTIONS for the ufe of Invalids, and Families, who may wish to avoid the expenfe attendant upon travelling with a Courier. The SECOND EDITION, revifed, corrected, and confiderably enlarged; by an Itinerary of Chamouni, and all the most frequented Paffes of the Alps, Germany, Portugal, Spain, France, Helland, Denmark, Norway, Sweden, Ruffia, and Poland; together with Inftructions for Invalids relative to the Iland of Madeira. By MARIANA STARKE, Author of "The Widow of Malabar," "The Tournament," "The Beauties of Carlo-Maria-Maggi Paraphrafed, &c."

Price 7s. 6d. No. 8, of the

New Drawing Magazine;

Being a Selection of Leffons calculated to make the Art of Drawing eafy, and founded upon the Principles of Geometry and Profpective. By JAMES MERI 3: GOT, Drawing Mailer, London; and Pupil of the Royal Academy, in Paris. The 34 Work is printed in Medium Quarto, on a fine Wove Paper, and will be completed 35 in Twenty-four Monthly Paris, forming two handfome Volumes in 4to. 36 befides a copious Letter-prefs, will contain Five Plates, neatly executed, and as nearly Each Part, poffible diftriboted in the following order: 1. A Plate to elucidate Geometry, erfpective, or the Elements of the Science. Views from Nature. 4. Ditto, a Picturesque Scene in Colours. 5. A Group, or 2. Plate of Progreffive Leffons. 41udy of Flowers, coloured, fo as to refemble Nature in her highest perfection. In e courte of the Work will be introduced, Rules for Drawing and Painting Figures, 43 ndicapes, and Flowers--Rules for Drawing from Nature-the Process for Painting 44 Velvet; and other ufeful Receipts and Dilcoveries.

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WORKS printed for Longman, Hurst, Rees, Orme, and Brown,
Paternoster Row,

Paris, in 1802 and in 1814.

By the Rev. W. SHEPHERD. In one volume, Svo, price 75. 6d. boards.

In the Prefs, in two vols. 8vo. illuftrated with Plates by Lowry,

Systematic Education;

Or, ELEMENTARY INSTRUCTION in the various Departments of Literature and Science with Practical Rules for ftudying each Branch of Uleful Knowled By the Rev. W SHEPHERD, the Rev, LANT CARPENTER, LL. D. and Rev. J. JOYCE.

3.

The Picture of London.

Being a correct Guide to all the Curiofities, Amufements, Exhibitions, Public Etablishments, and Remarkable Objects, in and near London; with a Collectionof appropriate Tables, two large Maps, and various other Engravings. The Six Edition, reviled and corrected throughout, price 6s. 6d. bound in red

Observations on the Nature and Cure of Dropsies To which is added an Appendix, containing feveral Cafes of Angina Pectori with Dilectus, &c. &c. By JOHN BLACKALL, M. D. Phyfician to h Devon and Exeter Hofpital, and to the Lunatic Afyluni near Exeter In 8v Second Edition, price 10s. 6d. boards.

We muft clole this article by recommending a careful perufal of Dr. Blac
work to all those who are interelled in the improvement of their profeffion, and sh
are defirous of gaining information on a fubject which is not only of great import
but which is involved in confiderable obfcurity Monthly Review, April 183

A Selection of Curious Articles from the Gen
tleman's Magazine;

Refearches, Hiftorical and Antiquarian; 2. Ancient and
Containing,
Literature, Criticism, and Philology; 3. Philofophy and Matural History p
zers to and from Eminent Perfons; 5. Mifcellaneous Articles, including Aner
of extraordinary Perfons, ufeful Projects and Inventions; 6. Biographical Melo
Literary Anecdotes and Characters, Topographical Notices, &c. By 101
WALKER, LL. B. Fellow of New College, Oxford. In a large vols. 8vo. De
12s. 6d. boards; the Third Edition.

The Fourth Volume may be had feparate, price 14s. boards.

Extract of a Letter from Mr. Gibben, the Hiftorian to Mr. Nichols Laufane, February 24, 1792," I am tempted to embrace this opportuni getting to you the idea of a work, which must be fately well received by the That voluminous feries (Gentleman's Magazine) of more than threefeate contains a great nuuther of literary, historical, and mifcellaneous articles of real they are at prefent buried in a heap of temporary rubbish; but, if properly c and claffed, they might revive to great advantage in a new publication of a mode Gre."

6. Recreations in Mathematics & Natural Philosoph

Containing amaling Differtations and Inquiries concerning a Variety of
the meft remarkable and proper to excite Curiosity and Attention to the whi
of the Mathematical and Philofophical Sciences: the whole in a pleating and
Manner, and adapted to the Comprehenfion of all who are in the lealt inthate
lofe Sciences.

Firt compofed of M. OZANAM, of the Royal Academy of Sciencesake. Ja recompofed, and greatly enlarged, in a new Edition, by the celebrated M MON CLA and now tranflated into English, and improved with many Additions Oblervations. By CHARLES HUTTON, LL. D. and F. R. §. Emehrus fellor of Mathematics in the Royal Military Academy, Woolwich, Ingols with near 100 Copper-plates, price 31. 38. boards; the Second Edition.

Printed by J. ADLARD, 23, Bartholomew Close, and 39, Duke-street, Smithfi

1614

THE

Vaughan

MONTHLY MAGAZINE. [6 of Vol. 38

No. 263.] JANUARY 1, 1815.

When the Monthly Magazine was first planned, two leading ideas occupied the minds of those who undertook to con duct it. The first was, that of laying before the Public various objects of information and discussion, both amusing and instructive; the second was that of lending aid to the propagation of those liberal principles respecting some of the most important concerns of mankind, which have been either deserted or virulently op. posed by other Periodical Miscellanies; and upon the manly and rational support of which the Fame and Fate of the age must ultimately depend. Preface to Monthly Mag. Vol. I.

For the Monthly Magazine. TH HE attention of the public being properly directed to the system of lighting our streets, roads, and houses, by a nearer approach to the principle of inflammability, than is afforded by the compound substances of oil and tallow, we comply with the wishes of many

P277.11

correspondents, and with the anxious curiosity of the public at large, in giving place to an account of a simple Gas Ap paratus, as they have been and may be constructed to light a manufactory, a public edifice, a village, or a small neigh bourhood.

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The structure of the Gas Apparatus will be readily understood from the above diagram. It represents a section of the whole through its centre.

A A is an iron retort, about three feet long, and two feet diameter, open at the end B, to which is screwed by means of a flaunch, a door-piece; to this the door D is applied, and is shut close by a screw G, applied in the centre.

The coals to produce the gas are shut up in the retort, and the whole is heated to redness by a fire applied underneath i, upon the grate 4, the retort being placed in a sort of oven or furnace, so That the heat surrounds every part of it, except the mouth B, or part at which the coals are introduced.

Around is the space of this oven, and is the flew leading from it to the chimMONTHLY MAG, No. 263.

1

ney, the aperture of which is regulated by the little damper r.

Under A A is a plate of cast iron, preserving the retort from being injured by the intensity of the fire underneath it, and causing it to be heated more uniformly.

KK represents the cast iron pipe, which conveys all the volatile products of the coal to the refrigeratory of cast iron k, in which the tar, &c. extracted from the coal is deposited, and from whence they can be drawn off by means of the copper pipe at l.

N is a pipe which conveys the gas from the vessel k, to the top of the cylindrical vessel or receiver P, this receiver is air-tight at the top, and conse◄ quently the gas displaces the water in the vessel P, to a level with the small holes 8 P

made

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