Paris, February 17, 1802.

After having traversed the Pont Neuf, from the north side of the Seine, you cannot avoid noticing a handsome building to the right, situated on the Quai de Conti, facing the river. This is the Mint, or

HÔTEL DE LA MONNAIE.

The construction of this edifice was suggested by M. LAVERDY, Minister of State, and executed under the direction of M. ANTOINE, architect. I do not recollect any building of the kind in Europe that can be compared to it, since it far surpasses the Zecca at Venice.

The AbbÉ Terray (whose name will not be readily forgotten by the State-annuitants of his time, and for whom Voltaire, as one, said that he preserved his only tooth) when Comptroller-general of the Finances, laid the first stone of the HÔtÉl de la Monnaie, in April 1771.

An avant-corps, decorated with six Ionic pillars, and supported by two wings, from the division of the faÇade, which is three hundred and thirty-six feet in breadth by eighty-four in elevation. It is distributed into two stories above the ground-floor. Perpendicularly to the six pillars, rise six statues, representing Peace, Commerce, Prudence, Law, Strength, and Plenty.

In this avant-corps are three arches, the centre one of which is the principal entrance of the building. The vestibule is decorated with twenty-four fluted Doric pillars, and on the right hand, is a stair-case, leading to the apartments intended for the use of the officers belonging to the Mint, and in which they hold their meetings. This stair-case is lighted by a dome supported by sixteen fluted pillars of the Ionic order.

The whole building contains six courts: the principal court is one hundred and ten feet in depth by ninety-two in breadth. All round it are covered galleries, terminated by a circular wall alternately pierced with arches and gates.

The entrance of the hall for the money-presses is ornamented by four Doric pillars. This hall is sixty-two feet long by about forty broad, and contains nine money-presses. Above it is the hall of the sizers or persons who prepare the blank pieces for stamping. Next come the flatting-mills. Here, in a word, are all the apartments necessary for the different operations, and aptly arranged for the labours of coinage.

In the principal apartment of the avant-corps of the HÔtel de la Monnaie, towards the Quai de Conti, is the cabinet known in Paris by the name of the

MUSÉE DES MINES.

This cabinet or Museum was formed in 1778 by M. SAGE, who had then spent eighteen years in collecting minerals. When he began to employ himself on that science forty-five years ago, there existed in this country no collection which could facilitate the study of mineralogy. Docimacy vas scarcely known here by name. France was tributary to foreign countries thirty-seven millions of livres (circa £1,541,666 sterling) a year for the mineral and metallic substances which she drew from them, although she possesses them within herself. M. SAGE directed his studies and labours to the research and analysis of minerals. For twenty years he has delivered gratis public courses of chymistry and mineralogy. For the advancement of those sciences, he also availed himself of the favour he enjoyed with some persons at court and in the ministry, and this was certainly making a very meritorious use of it. To his care and interest is wholly due the collection of minerals placed in this building. The apartment containing it has, by some, been thought to deviate from the simple and severe style suitable to its destination, and to resemble too much the drawing-room of a fine lady. But those who have hazarded such a reproach do not consider that, at the period when this cabinet was formed, it was not useless, in order to bring the sciences into fashion, to surround them with the show of luxury and the elegance of accessory decoration. Who knows even whether that very circumstance, trifling as it may appear, has not somewhat contributed to spread a taste for the two sciences in question among the great, and in the fashionable world?

However this may be, the arrangement of this cabinet is excellent, and, in that respect, it is worthy to serve as a model. The productions of nature are so disposed that the glazed closets and cases containing them present, as it were, an open book in which the curious and attentive observer instructs himself with the greater facility and expedition, as he can without effort examine and study perfectly every individual specimen.

The inside of the Museum is about forty-five feet in length, thirty-eight in breadth, and forty in elevation. In the middle is an amphitheatre capable of holding two hundred persons. In the circumference are glazed cabinets or closets, in which are arranged methodically and analytically almost all the substances known in mineralogy. The octagonal gallery, above the elliptical amphitheatre, contains large specimens of different minerals. To each specimen is annexed an explanatory ticket. One of the large lateral galleries presents part of the productions of the mines of France, classed according to the order of the departments where they are found. The new transversal gallery contains models of furnaces and machines employed in the working of mines. The third gallery is also destined to contain the minerals of France, the essays and results of which are deposited in a private cabinet. The galleries are decorated with tables and vases of different species of marble, porphyry, and granite, also from the mines of France, collected by SAGE. The cupola which rises above, is elegantly ornamented from the designs of ANTOINE, the architect of the building.

This Museum is open to the public every day from nine o'clock in the morning till two, and, though it has been so many years an object of curiosity, such is the care exerted in superintending it, that it has all the freshness of novelty.

In a niche, on the first landing-place of the stair-case, is the bust of M. SAGE, a tribute of gratitude paid to him by his pupils. SAGE'S principal object being to naturalize in France mineralogy, docimacy, and metallurgy, he first obtained the establishment of a Special School of Mines, in which pupils were maintained by the State. Here, he directed their studies, and enjoyed the happiness of forming intelligent men, capable of improving the science of metallurgy, and promoting the search of ores, &c.

For a number of years past, as I have already observed, SAGE has delivered gratis, in this Museum; public courses of chymistry and mineralogy. He attracts hither many auditors by the ease of his elocution, and the address, the grace even which he displays in his experiments. If all those who have attended his lectures are to be reckoned his pupils, there will be found in the number names illustrious among the savans of France. Unfortunately, this veteran of science has created for himself a particular system in chymistry, and this system differs from that of LAVOISIER, FOURCROY, GUYTON-MORVEAU, BERTHOLLET, CHAPTAL, &c. The sciences have also their schisms; but the real savans are not persecutors. Although SAGE was not of their opinion on many essential points, his adversaries always respected him as the man who had first drawn the attention of the government towards the art of mines, instigated the establishment of the first school which had existed for this important object, and been the author of several good analyses. On coming out of prison, into which he had been thrown during the reign of terror, he found this cabinet of mineralogy untouched. It would then have been easy, from motives of public utility, to unite it to the new School of Mines. But the heads of this new school had, for the most part, issued from the old one, and SAGE was dear to them from every consideration. It was from a consequence of this sentiment that SAGE, who had been a member of the Academy of Sciences, not having been comprised in the list of the members of the National Institute at the time of its formation, has since been admitted into that learned body, not as a chymist indeed, but as a professor of mineralogy, a science which owes to him much of its improvement.

The new School of Mines is now abolished, and practical ones are established in the mountains, as I have before mentioned. While I am speaking of mineralogy, I shall take you to view the

CABINET DU CONSEIL DES MINES.

This cabinet of mineralogy, formed at the HÔtel des Mines, Rue de l'UniversitÉ, No. 293, is principally intended to present a complete collection of all the riches of the soil of the French Republic, arranged in local order. A succession of glazed closets, contiguous and similar to each other, that is about six feet and a half in height by sixteen inches in depth, affords every facility of observing them with ease and convenience. On these cases the names of the departments are inscribed in alphabetical order, and the vacancies which still exist in this geographical collection, are daily filled up by specimens sent by the engineers of mines, who, being spread over the different districts they are charged to visit, employ themselves in recognizing carefully the mineral substances peculiar to each country, in order to submit their views to the government respecting the means of rendering them useful to commerce and to the arts.

The departmental collection, being thus arranged on the sides of the gallery, leaves vacant the middle of the apartments, which is furnished with tables covered with large glazed cases, intended for receiving systematic collections, and the most remarkable mineral substances from foreign countries, distributed in geographical order.

An apartment is specially appropriated to the systematic order adopted by HAÜY in his new treatise on mineralogy; another is reserved for the method of WERNER.

In both these oryctognostic collections, minerals of all countries are indiscriminately admitted. They are arranged by classes, orders, genera, species, and varieties, with the denominations adopted by the author of the method, and consequently designated by specific names in French for HAÜY'S method, and in German for that of WERNER. The proximity of the two apartments where they are exhibited, affords every advantage for comparing both methods, and acquiring an exact knowledge of mineralogical synonymy. Each of the two methods contains also a geological collection of rocks and various aggregates, classed and named after the principles which their respective authors have thought fit to adopt.

The other apartments are likewise furnished with tables covered with glazed cases, where are exhibited, in a manner very advantageous for study, the most remarkable minerals of every description from foreign countries, among which are:

1. A numerous series of minerals from Russia, such as red chromate of lead, white carbonate of lead, green phosphate of lead; native copper, green and blue carbonate of copper; gold ore from Berezof; iron ore, granitical rocks, fossil shells, in good preservation, from the banks of the Moscorika, and others in the siliceous state, jaspers, crystals of quartz, beril, &c.
2. A collection from the iron and copper mines of Sweden, as well as various crystals and rocks from the same country.
3. A very complete and diversified collection of minerals from the country of Saltzburg.
4. Another of substances procured in England, such as fluates and carbonates of lime from Derbyshire; pyrites, copper and lead ore, zinc, and tin from Cornwall.
5. A collection of tin ore, cobalt, uranite, &c. from Saxony.
6. A series of minerals from Simplon, St. Gothard, the Tyrol, Transylvania, as well as from Egypt and America. All these articles, without being striking from their size, and other accessory qualities to be remarked in costly specimens, incontestably present a rich fund of instruction to persons delirous of fathoming science, by multiplying the points of view under which mineral productions may be observed.

Such is the present state of the mineralogical collection of the Conseil des Mines, which the superintendants will, no doubt, with time and attention, bring to the highest degree of perfection. It is open to the public every Monday and Thursday: but, on the other days of the week, amateurs and students have access to it.

A few years before the revolution, France was still considered as destitute of an infinite number of mineral riches, which were thought to belong exclusively to several of the surrounding countries. Germany was quoted as a country particularly favoured, in this respect, by Nature. Yet France is crossed by mountains similar to those met with in Germany, and these mountains contain rocks of the same species as those of that country which is so rich in minerals. What has happened might therefore have been foreseen; namely, that, when intelligent men, with an experienced eye, should examine the soil of the various departments of the Republic, they would find in it not only substances hitherto considered as scarce, but even several of those whose existence there had not yet been suspected. Since the revolution, the following are the

Principal Mineral Substances discovered in France.

Dolomite in the mountains of Vosges and in the Pyrenees.

Carburet of iron or plumbago, in the south peak of Bigorre. The same variety has been been found near ArgentiÈre, and the valley of Chamouny, department of Mont-Blanc.

A rock of the appearance of porphyry, with a calcareous base, in the same valley of Chamouny.

Tremolite or grammatite of HAÜY, in the same place. These two last-mentioned substances were in terminated crystals.

Red oxyd of titanium, in the same place.

New violet schorl, or sphene of HAÜY, (rayonnante en goutiÈre of SAUSSURE) in the same place.

Crystallized sulphate of strontia, in the mines of Villefort in La LozÈre, in the environs of Paris, at Bartelemont, near the Salterns in the department of La Meurthe.

Fibrous and crystallized sulphate of strontia, at Bouvron, near Toul.

Earthy sulphate of strontia, in the vicinity of Paris, near the forest of Montmorency, and to the north-east of it.

Onyx-agate-quartz, at Champigny, in the department of La Seine.

Avanturine-quartz, in the Deux-Sevres.

Marine bodies, imbedded in the soil, a little above the Oule de Gavernie.

Anthracite, and its direction determined in several departments.

Other marine bodies, at the height of upwards of 3400 mÈtres or 3683 yards, on the summit of Mont-Perdu, in the Upper PyrenÉes.

Wolfram, near St. Yriex, in Upper Vienne.

Oxyd of antimony, at Allemont, in the department of L'IsÈre.

Chromate of iron, near Gassin, in the department of Le Var, at the bastide of the cascade.

Oxyd of uranite, at St. Simphorien de Marmagne, in the department of La CÔte d'Or.

Acicular arsenical lead ore, at St. Prix, in the department of Saone and Loire. This substance was found among some piles of rubbish, near old works made for exploring a vein of lead ore, which lies at the foot of a mountain to the north-east, and at three quarters of a league from the commune of St. Prix.

In this country have likewise been found several varieties of new interesting forms relative to substances already known; several important geological facts have been ascertained; and, lastly, the emerald has here been recently discovered. France already possesses eighteen of the twenty-one metallic substances known. Few countries inherit from Nature the like advantages.

With respect to the administration of the mines of France, the under-mentioned are the regulations now in force.

A council composed of three members, is charged to give to the Minister of the Interior ideas, together with their motives, respecting every thing that relates to mines. It corresponds, in the terms of the law, with all the grantees and with all persons who explore mines, salterns, and quarries. It superintends the research and extraction of all substances drawn from the bosom of the earth, and their various management. It proposes the grants, permissions, and advances to be made, and the encouragements to be given. Under its direction are the two practical schools, and twenty-five engineers of mines, nine of whom are spread over different parts of the French territory. General information relative to statistics, every thing that can concur in the formation of the mineralogical map of France and complete the collection of her minerals, and all observations and memoirs relative to the art of mines or of the different branches of metallurgy, are addressed by the engineers to the Conseil des Mines at Paris.