Book 7 — The Fine Arts.

Paul Delaroche's picture of Marie Antoinette is to be engraved on a large scale. Delaroche has represented the unfortunate Autrichienne descending the stairs from the terrible tribunal which pronounced her death-sentence. She is attired in black, with a white scarf round her shoulders. A singular but striking effect, which the painter has rendered with habitual felicity, is the altered color of her hair, which is said to have turned white. The artist has shown the alteration, by a few stray auburn locks, blanched at the root. In the background is represented the mob which greeted with execrations the "widow Capet" on the morning of the 15th October, 1793.

The Print of the London Art-Union for the current year is from one of Mr. Frith's pictures, An English Merry-making in the Olden Time, engraved by Holt, so carefully as to bring out every detail and shade of character in the original with the greatest fidelity and spirit. The merry-making consists mainly in the performance, beneath some noble trees, of the old country-dance of Sir Roger de Coverley, by a party of rustics. A couple of lovers are seated in the foreground, and close by them is a group of merry damsels hauling a jolly old farmer to the dance, while the dame encourages their attack.

A few friends of the poet Motherwell, of Glasgow, have just erected a beautiful monument to him in that city. It is the work of Mr. Fillans, a friend of the deceased, and is in the form of a small Gothic temple, consisting of a quadrangular pediment of solid masonry, supporting a light dome on four pillars; the dome being decorated with carvings of shields and fleurs de lis. In the space between the pillars is a sarcophagus, on which is placed a termini bust of the poet.

The German Painter Winterhalter, whose pencil is mainly dedicated to courtly chronicles and countenances, has just completed another of his numerous royal family groups. It represents the Duke of Wellington in the act of offering an affectionate souvenir to his little godson Prince Arthur, on the occasion of his first birth-day anniversary.

The Count de Thun, a distinguished Austrian painter, and M. Ruben, director of the Royal Academy of the Fine Arts in Prague, have been commissioned by the Austrian government to examine into the several organizations of the schools of the arts of design in England, France, and Germany, with a view to propose such ameliorations as the examination may suggest in the various schools of Austria.

In the closing weeks of the Great Exhibition in London, several chef-d'œuvres of art have been received, and among them one by the celebrated Dutch sculptor, Van der Ven, representing the Temptation of Eve. It attracts a great deal of attention. The treatment of the subject is bold and original, the form of the first woman being developed with freedom, grace, and life-like effect. One of its chief excellencies is, that in its composition there is no trace of that disposition to borrow from the classic styles of antiquity, instead of relying upon nature, which so often detracts from the merit of modern sculpture. Mr. Spense, an English artist at Rome, has also lately contributed a statue of Burns's Highland Mary, which is much admired.

Mr. Ruskin has published a new pamphlet entitled Pre-Raphaelitism, in which nature, and not the critical writers, the applauded models of the day, or tradition, is declared the only true guide to excellence in art; and all modern art is held to be depraved in taste, as it were, an arid desert, in which he endeavors to set up two landmarks, John Everett, Millais, and Joseph Mallord Turner. Between these two poles stand William Hunt, who paints still life; Samuel Prout, of street architecture renown; John Lewis, the harem-scene delineator; and finally, Mulready and Landseer. The essay is keenly reviewed in the Athenæum, Times, &c., but is admitted by all to be characteristically eloquent.

The American Art-Union opened its galleries on Monday evening, September 22. The collection of pictures we understand is unusually good. The occasion was one of much good feeling and enjoyment. Speeches were made by the President of the Art-Union, by Mr. Conrad, Secretary of War, by Rev. Dr. Osgood, Parke Godwin, C. A. Dana, Mr. Thompson of the Southern Literary Messenger, Judge Campbell, General Wetmore, and several other gentlemen.

Powers's celebrated statue of Eve, which was lost off Cape Palos in May, 1850, arrived in New-York a few days ago, in the British schooner Volo, from Carthagena, not having sustained any material injury. A letter from Mr. Powers respecting this statue was printed in the last number of The International.

Mr. Leutze, after a long absence from this country, has returned, bringing with him his greatest work, Washington Crossing the Delaware, which will soon be exhibited at the Stuyvesant Institute. Mr. Leutze was received with great applause at the late meeting of the Art-Union.