It is seed-time rather than harvest in the world of Literature and Art, as well as in that of matter. Publishers are in deep consultation over projected works. The still labor of brain, eye, and hand goes on in the library of the author and the studio of the artist, the results of which, when ready for the public eye, we shall chronicle. The series of lectures before the Artists' Association has been brought to a very appropriate close by a lecture from HUNTINGTON, the painter. His subject was "Christian Art." He claimed, in theory, for his Art that lofty and sublime mission which he has attempted to exemplify in practice.----The most attractive series of lectures delivered in this city during the last season has undoubtedly been that of Mr. LORD, on the "Heroes and Martyrs of Protestantism." Those who might feel inclined to dissent from several of his views and conclusions, could not be other than pleased by the earnestness and zeal with which they were set forth and advocated. As literary productions, these lectures are deserving of high praise.----BANVARD'S three-mile Panorama of the Mississippi has been the fruitful parent of a multitude of staring and impudent productions, which it were almost a libel upon Art to call pictures. The "cheap side" of Broadway is lined with these monstrosities, which for the most part have met with the very moderate patronage which they deserve. MARTIN FARQUUHART TUPPER, has arrived in this country. We copy from the _Evening Post_ the following graceful lines, written in the harbor on the morning of his arrival: Not with cold scorn or ill-dissembled sneer, Ungraciously your kindly looks to greet, By God's good favor safely landed here. Oh friends and brothers, face to face we meet. Now for a little space my willing feet, After long hope and promise many a year, Shall tread your happy shores; my heart and voice Your kindred love shall quicken and shall cheer, While in your greatness shall my soul rejoice-- For you are England's nearest and most dear! Suffer my simple fervors to do good, As one poor pilgrim haply may and can, Who, knit to heaven and earth by gratitude, Speaks from his heart, to touch his fellow man. WASHINGTON'S BIRTH-DAY was celebrated with unusual splendor in this city. An oration was delivered by Hon. H. M. FOOTE, of Mississippi. At the public dinner letters were read from President FILLMORE, and Messrs. WEBSTER, CLAY, and CASS. The principal speech of the evening was made by Hon. EDWARD EVERETT, in reply to the toast of "the Constitution." WASHINGTON IRVING has written a pleasant and characteristic letter, which has been going the rounds of the papers, to Jesse Merwin, of Kinderhook, the original Ichabod Crane, of the far-renowned "Legend of Sleepy Hollow." EUROPEAN.