called Adrianople Red. By M. HAUSSMANN.-This paper may perhaps be perused with advantage by dyers, and others who are engaged in similar pursuits.

Extract of a Report on the Oxides of Manganese, which may be employed in the Arts. By M.M. CORDIER and BAUNIER.-This investigation was undertaken to ascertain which of the different kinds of manganese, found in the territories of the French Republic, was most proper to be employed in the fabrication of oxygenated muriatic acid.

Exposition of a new Method of separating the Silver which is alkeyed with Copper in base Coin. By M. NAPIONÉ. The usual mode hitherto employed for this purpose has been liquation with lead, but in many cases it has been found very inadequate. The writer of this paper, therefore, having reflected that sulphur has a greater affinity for copper than for silver, conceived hopes that, by the addition of this substance, the greater part of the silver would become concentrated in a portion of the copper; so that it might be immediately subjected to cuppellation: while the other part, or matt, being less rich, might undergo the process of amalgamation.-He then relates his experiments; from which it appears that this method may be employed on a large scale with much advantage, and that the expense attending it will not amount to one fifth of the cost of ordinary liquation.

Report made to the National Institute, on the Establishment formed by M.M. ANFRYE and LECOUR to extract the Copper and Tin from the Scoria of Bell Metal.-These scoria had been abandoned as absolutely useless, and were therefore only employed to repair roads, &c. until M. ANFRYE discovered a method in the dry way, by which from 30 to 40 pounds of tin and copper may be separated from a quintal of the scoria. The process appears to be very simple, nothing more being required to separate the tin from the copper, than to promote the oxidation of the former; and this oxide is afterward separated from the copper by washing. The oxide of tin is then mixed with one-eleventh part of powdered charcoal, and is reduced in a wind furnace.

Note on the Hydro-sulphuret of Soda. By M. VAUQUELIN.— Having washed a large quantity of soda, in order to extract the carbonate, M. VAUQUELIN observed, at the end of a few weeks, a white salt at the bottom of the mother liquor. This salt was in the form of tetraedral rectangular prisms, terminated by four-sided pyramids; and some were of an octaedral figure. The flavour at first was acrid and caustic, but afterward became extremely bitter, with a slight smell of sulphu

rated

rated hydrogen gas. The author then relates some experiments which he made on this salt, and which prove it to be an hydro-sulphuret of soda.

Extract of a Letter from Mr. CHENEVIX, of London, to M. Vauquelin. Mr. C. here acquaints M. Vauquelin that Mr. Hatchett has discovered a new metal, in a mineral from Massachusetts, to which he has given the name of Columbium. This metal is acidifiable, and may be converted into a white oxide and acid. With tincture of galls, it forms a beautiful orange coloured precipitate; and, with the prussiates, it produces one of a green colour. It likewise combines with the alkalis, and expels the carbonic acid. Mr. C. also mentions that he has obtained nickel and cobalt which were not attracted by the magnet.

A new Mode of forming Ammonia.-M. Lampadius, of Freyberg, has observed that, when crude tartar, or cream of Tartar, has been heated until the flame and smoke disappear, ammonia may be obtained by the addition of water.

Observations on some Effects of the Electric Fluid, when put in motion by the Pile of M. Volta. By M. RITTER.-The most remarkable of these effects is the following: M. RITTER exposed himself, during one hour, to the action of a pile composed of 100 pieces of copper and zinc; and he felt more pain when he touched the copper than when he touched the side at which the zinc was placed. The arm which had touched the copper experienced a sensation of cold for some time afterward, but the other, on the contrary, felt hot. The arm on the copper side of the pile lost its power of motion, while that on the zinc side seemed to have its strength increased. At the end of an hour he was seized with a diarrhæa, and became much enfeebled; he even felt the effects of this galvanism so much as to be incapable of doing any thing for ten days, and he experienced a remarkable disgust whenever he approached the pile, or any electrical machine. M. Darnim, and some other persons, submitted to the same experiment, and were affected nearly in a similar manner.

Memoir on a native Phosphate of Iron mixed with Manganese. By M. VAUQUELIN.-This mineral, found in the neighbourhood of Limoges, was at first supposed to be an ore of tin; it is of a reddish brown colour, and, when divided into small thin pieces, has a brilliant lustre, and is semi-transparent. It slightly scratches glass; it affords a yellowish grey powder; and its specific gravity is 3655.

By the blow-pipe, it melts into a black enamel, and does not exhale any odour during the fusion. It is composed as follows:

Oxide of iron
Phosphoric acid

Oxide of manganese

31

27

42

100

{

The author observes that this substance may be very useful for porcelain, &c., since it is easily fused, and produces black, brown, and violet enamels.

Observations on the Acetic and Acetous Acids. By M. DARRACO In the commencement of this paper, the author concisely notices the experiments and opinions of M.M. Adet and Chaptal; and, having afterward related the experiments made by himself, he concludes that there is not any difference in the constituent principles of these acids;-that water and mucilaginous matter, or extract, are the sole causes of the apparent difference in their properties;-and, consequently, that there exists only one acid of vinegar, which, being at the maximum of oxygenation, ought to be denominated acetic acid.

Observations on the Sap of Asparagus and of Cabbage. By M. DELAVILLE. This paper does not appear to require any particular notice.

Letter of M. DESCROIZILLES.-A bottle, in which was some phosphorus covered with water, was burst by the freezing of the latter; in consequence, some books and papers were set on fire by the phosphorus, and the author nearly lost his life. He therefore writes this letter as a caution to those who keep phosphorus is the manner above mentioned, and recommends that the bottles should always be placed in copper cases lined with bran and paper.

Memoir on Vegetable Gluten. By M. CADET.-The experi ments made by this gentleman induce him to conclude, 1st. That fresh gluten is insoluble in alcohol.

2dly. That it becomes soluble by the acid fermentation. 3ly. That this solution is precipitated by water.

4thly. That the same, when evaporated to the consistency

of a syrup, may be employed as a varnish.

5thly. That colours may be mixed with this varnish. 6thly. That vegetable colours combine preferably with gluten.

7thly. That paint prepared with the gluten becomes quickly dry, has not any pernicious odour, and may be washed.

8thly. That a very tenacious and solid lute may be formed with gluten and lime.

Experiments on the Tanning Principle, and Reflections on the Art of Tanning. By M. MERAT GUILLOT.-We do not perceive any thing very remarkable in this paper.

These numbers contain some other articles, which, not being original, we do not particularize.

There has been published, and imported, by M. de Boffe, a Table générale raisonnée des matieres contenues dans les 30 premiers volumes des Annales de Chimie; suivie d'une table alphabetique des auteurs qui y sont cités. 8vo. pp. 430.

ART. XVI. Tableaux de Famille, &c. i. e. Family Pictures, or the Journal of Charles Engleman. Translated from the German of AUGUSTUS DE LA FONTAINE, by the Author of Caroline of Litchfield (Madame de Crousaz). 12mo. 2 Vols. Paris. 180. Imported by de Boffe, London.

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the preface to this work, Madame Crousaz gives an animated and ingenious description of that difficult though humble province of literature,-translation; and she thus replies to a friend, who compliments her on her peculiar excellence in this line:

Yet I know nothing so ungrateful and thankless as the task of the translator. If the version be good, it is the author alone to whom the reader feels himself obliged; if the work be bad, the translator alone is accused: if the version be liberal, it is said to want grace and elegance; if it be diffuse, it is deficient in strength and spirit. The difficulty of exactly catching the genius of one language which is not familiar to me, and which differs so materially from my own, of preserving inviolate the strength of the one and the purity of the other; and the obligation to alter nothing, to rigidly impart an idea in which I do not accord, or to copy an incident which is displeasing, when conscious that it might be improved: all these circumstances induce me to think that it is easier to compose than to translate.'

Madame de Grousaz pursues this subject even to the region of Parnassus; and she recounts to her friend the following jeu d'esprit, which was prefixed to one of her former publications:

Vain is the effort to engrave
Colours that a Reubens gave,
Breathing tints and glowing hues;
Like the lyre, at second hand,
Stript of all its proud command,
Torn from Genius and the Muse.

Hatch.

So labour'd versions oft efface
All the poet's fleeting grace,
Which a single touch inspir'd;
Like the rose that winds have tost,
Fading when the stem is lost,

Which its beauteous form required.'

We have before observed, respecting the writings of M. DE LA FONTAINE, that one of his qualities is to rise in the reader's estimation by gradual and progressive advances; and this is surely preferable to the art of sinking, in which so many are equal proficients. The first chapter of the volume before us is intitled, by the journalist, My Commission of Biography,' and contains a whimsical relation of the circumstances whence he derived the commission, with the manner of his being invested with it. It is a painting of the Shandean school, and not a bad copy of the mock solemnity of Sterne's affected pathos :

This infant (added my father, pointing to me,) shall inherit this Bible after my death; and promise me, my. Charles, that you will fill all these blank leaves with the actions and occurrences of your life, be they good or bad:- promise me, my child.-My father rose from his seat, his eye was animated, his voice had something of peculiar solemnity, my uncle rose also, and laid down his pipe,-my mother clasped her hands. This scene, and the solemn silence which accompanied it, impressed my mind with awe; I advanced-I gave my hand to my father-he took off his cap-my uncle held out his hand-and my mother embraced me with tears in her eyes-while, to my father's benediction, which accompanied the Bible, every one said. -AMEN.'

From the hour of this pathetic ceremony, the young Charles (then twelve years old) determined on being his own biographer; the charms of authorship captivated his youthful. imagination, and the first thing which he wished to see wasa printing press. Instead of playing at marbles, like other boys of his age, he was continually ruminating on the task which his father had enjoined to be performed in the Bible; he prepared for it with the same speculation which many authorsexercise when they set out on travels, for the purpose of making a book; and he availed himself of every little incident in his own family. Apprehensive, however, that a journal barren of misfortunes would be insipid, he earnestly wished that his life might be in some degree chequered with sorrow, in order to afford just such a number of unhappy adventures, that a spring of tears might not be wanting to water the dry ground of his narrative.