A Vindication of the Court of Russia, from a false and treasonable attack in a pamphlet, entitled, "The State of the Negociation, &c." in an address to the public, 8vo. 2s. 6d.

A View of the late Negociation; including a refutation of the statement contained in Mr. Fox's introductory letter, observations on Talleyrand's answer of the 5th of March, discussed in the House of Commons, 1806, and in the House of Lords, Jan. 3rd, 1807, and remarks on some part of "the State of the Negociation," which have not been noticed in that incomparable pamphlet, "A Vindication of the Court of Russia ;" particularly in regard to the Oriental Administration of the Marquis Wellesley, 8vo. 2s. 6d.

The East-India Register and Directory, for 1807, compiled from the official returns, by Permission of the Honorable the East-India Company, by John Mathison and Alexander Way Mason, of the Secretary's Office, East-India House, 12mo. 5s. 6d. sewed.

History of the Westminster and Middlesex Elections; in the month of November, 1806, 8vo. price 9s. boards.

THEOLOGY.

A Sermon preached at the Rev. James Knight's Meeting-House, Collyer's Rents, Southwark, at a Monthly Association of Ministers and Churches, Dec. 11, 1806, by Robert Winter. Subject-Future Punishment of Endless Duration, price 18.

The Beneficial Effects of the Christian Temper in Domestic Happiness, 8vo. price 2s. 6d.

Primitive Truth, in a History of the Internal State of the Reformation, expressed by the early Reformers in their writings; and in which the question concerning the Calvinism of the Church of England is determined by positive Evidences, 8vo. price 7s. boards.

A Sermon preached at Leicester, June 6, 1806, at a Visitation of the Right Rev. the Lord Bp. of Lincoln, by Hon. and Rev. H. Ryder, A. M. Rector of Lutterworth. Subject.-On the Doctrine of Final Perseverance and Assurance of Salvation, 1s. 6d.

A Sermon preached at Leicester, Sept. 9th, 1806, at the Annual Meeting of the Governor of the Leicester Infirmary, by Hon. and Rev. H. Ryder, A. M. Published at the request of the Governors; printed at the expence, and sold for the benefit of the Infirmary, 1s. 6d.

A complete History of the Holy Bible,as contained in the Old and New Testaments, including also the occurrences of four hundred years, from the last of the Prophets to the birth of Christ, with copious Notes, by the Rev. George Burder, vol. 3, 8vo. 10s. Cd. or 12mo. 8s. boards.

TRAVELS.

Travels in Scotland, by an unusual Route, with a Trip to the Orkneys and Hebrides, containing hints for improvement in Agriculture and Commerce, with characters and anecdotes, einbellished with views of striking objects, and a map, including the Caledonian Canal, by the Rev. James Hall, A. M. 2 vols. 8vo. price 26s. boards.

METEOROLOGICAL

METEOROLOGICAL REGISTER.

Introductory Remarks on the Register, with an account of the Instruments.

(Continued from page 81.)

THE station of the Observer is in the village of Plaistow, in Essex, about 3 miles NNE. of the Royal Observatory at Greenwich. It commands the whole Horizon, and, in most points, a distant view of the country, particularly down the Thames, the village lying on the edge of the extensive level of pasture land which runs N. of the River, and about equidistant from it and the Lea. The elevation of the ground differs little from that of the East parts of London.

The Wind is noted by a Vane which moves freely, and is not commanded by any higher object. The prevailing current is endeavoured to be taken, or that which has blown longest in the twenty-four hours. When observed to blow from opposite points in that period it is, however, usually set down Variable. The direction in which the change proceeds, being an important point in Meteorology, it will sometimes be adverted to in the Notes; as will also that of superior currents as discovered by the motion of clouds.

A wheel Barometer is employed, made by Haas, having a circular scale of about 22 Inches in extent, and the moving radius of a much more delicate construction than is to be found in the generality of these Instruments. In its use the following method is observed. It is placed in an apartment constantly inhabited, in order to come as often as possible under notice. The Index is frequently adjusted to the Radius, so long as the motion continues in the same direction. Should the latter change, the Index is left in its place, and at the next notation (at 9 a. m.) the Radius and Index shew, respectively, the maximum and minimum of Elevation during the twenty-four hours. If the motion has been uniformly ascending, the maximum of yesterday is the minimum of to-day; if descending, the contrary. A single change of direction is always discoverable in the Register, and it is rare that such a change occurs either in the night, or more than once in twentyfour hours. Observations, obtained by this method, represent with tolerable accuracy the true curve described by the variable pressure of the Atmosphere.

The Temperature is ascertained by the Thermometer of Six, attached horizontally (a precaution dictated by the repeated accident of the floats sinking when perpendicular) to a support of wood in a North exposure. For this Instrument, simple inspection, at the time of registering, suffices to get the maximum and minimum; care being taken always to adjust the floats with a magnet.

N. B. The Notations comprised in each Line relate to a period of 24 hours reckoned from 9 a. m. on the day of the date. A dash denotes that the period so marked is to form a part of that allotted to the next observation.

NOTES.

a. 10, 11, 14, very stormy nights.

Suspecting too great an effect of the wind on the water in the Evap. Gauge, these four results are omitted, and precaution taken to increase the shelter.

b. Lunar halo; succeeded (as usual) by wind, on 23, 24, 25.

c. The highest tide that has occurred, it is said, during fifteen years. In the last spring-tides, the addition of heavy Rain caused a pretty considerable overflow of the River Lea. The present elevation seems

to be independent of Rain in these parts. d, Hoar frost. 31. Bright day quite to sunset. 1. misty. 2. very misty and much rime. This gradation is against the continuance of frost.

e. At 10 a. m. Wind W. the melted rime descending in showers from the trees. There was enough on the Rain Gauge to make 0.02 In. when melted. Such an amount of Rain would have wetted the ground considerably; which however is dry, save under the trees. Rime is a peculiar crystallization from a freezing mist. Hence its abundance on surfaces exposed to the wind.

f. At sun-rise, an unusually ruddy sky for the season.

RESULTS.

The South-west Wind, which had so long reigned, yielded, just at the close of the year, to the North and West. Some frost ensued, which however had not the characters of permanence, being neither ushered in by driven Snows nor accompanied with a dry and serene Atmosphere. Mean height of the Barometer 29.84 İn.

The motion continued desultory so long as gales of Wind arrived from the Southward. On the 20th it begun to resume the bolder strides of Winter; and the Column soon attained an elevation which well indicated the succeeding fair weather.. Mean Temperature 42. 53°.

If we take it, however, from New to Full Moon, leaving out the period at frost, it is nearly 47°, 1.07 In.

Total Evaporation (in 25 days)
Rain

1.40

The effects of the late high winter Temperature on vegetation must have been obvious to every one who has seen the country. To the very close of the year the grass continued to grow, the daisies to enamel the turf, and many of the inmates of our gardens (native and exotic) to thrive and blossom. Even Hyacinth bulbs, left in the open beds, shot up and flowered. A good account of the state of vegetation at the close of 1806, might be a useful document hereafter in investigating the acceleration and retardation of our Seasons. Ten years ago Winter came on six weeks earlier, and with considerable severity.

Plaistow, I. month 12, 1807.

L. HOWARD.

INTELLIGENCE

RELATIVE TO ARTS, MANUFACTURES, &C. IN JANUARY, 1807.

Method of making Artificial Stones, at Dunkirk.

THE remains of old buildings, consisting of brick, sand, and lime, form the basis of this artificial stone. These materials (which at Dunkirk are procured from the ruins of the citadel) are broken small by a horse mill, composed of two stone wheels placed vertically, revolving in a circle, similar to those used for crushing bark, and bruising rape-seed, and are then placed in cisterns of water, that they may become thoroughly moist. A cement being previously prepared of the nature of tarras, to which is added an eighth part of lime, freshly slaked in the air; and moulds having been formed of wood of the shape required; a layer of sand is first deposited in the mould to keep the cement from sticking to it, then a bed of cement is thrown in, upon which is placed another of the prepared brick-bats, and thus the mould is filled with successive layers of the cement and broken bricks; the last of which layers is of cement only. The moulds are next detached from the enclosed compositions, and these are then ranged in the best order for drying, which speedily takes place, as the absorbent nature of the lime soon causes the whole to become a solid mass.

Artificial stones are thus made for foundations, angles, and terminations of buildings, which are mostly square blocks, or, more precisely speaking, rectangular prisms; but may be also formed into various other shapes, for cornices, freezes, pillars, capitals, and pilasters.

The methods now generally known, through the various publications on the arts, for making tarras from various species of iron stone, iron ochers, and sulphurets of iron, all of which are very plentiful in this country, particularly in the vicinity of coal-pits, give us great facility for making compositions of this kind; which may be very useful in the extensive districts where stone of large size fit for building is not found naturally, and can only be procured by expensive carriage.

Of the Canal Track Boats used in Ireland.

Mr. Buchanan, of Glasgow, has published in January, some account of these boats, which he recommends to public attention, both from their general arrangement and the mechanical contrivances connected with them.

The following account of them is partly taken from Mr. Buchanan's paper on the subject, and partly from the recollection of the writer of this article, who has also travelled in thers.

Their external appearance is somewhat similar to that of those on the grand junction canal, which convey passengers from Paddington to Uxbridge, but they are considerably longer, are formed sharper below at the head, and have, what ship-builders call, a cleaner run, or more gradual slope from the place of greatest breadth to the stern post; they also look much neater and better finished.

They are divided within into two large cabins and a small one; one of the large cabins is for the accommodation of those who choose to pay the higher fare, and the other for poor passengers who pay about half the rate of the other cabin: between these cabins the small one is placed, which serves as a bar and larder, where refreshment may be had at reasonable rates, whenever required. The principal cabin has a fire-place, and is fitted up with covered benches, at each side of a long table; several windows give it light, which rise and tail by weights and pullies; breakfast and dinner are served in at stated hours to the company, at the latter of which not more than a pint of wine is allowed to each person. A place for cooking is fitted up at the stern of the boat; where also is placed an ingenious apparatus for stopping the boat on its entering the locks, invented by Mr. Darling of Dublin, and which consists of two planes of sheet iron, strengthened by cross bars, each containing about 6 square feet in extent,

which