Some may have heard rumors of the exhibition of Turners, to be given in Boston during the last two weeks of April. We understand that the preparations are nearly completed, and in our next number we shall hope to give full particulars as to the place of the collection, its time of opening, and so forth. Turner's name is familiar to many in this country through the books of Mr. Ruskin; but our opportunity of studying his work by the light of Modern Painters has been restricted to a sight of the Slave Ship in New York, and of such sketches as have been engraved separately, or for books illustrated by him. It is interesting to know, therefore, that in the catalogue to be prepared, extracts in reference to the different pictures will be given from Mr. Ruskin's works, who will himself send on several water-color sketches. As it is highly probable that the collection of the Duke of Montpensier from Spain will be opened at the Athenaeum this spring, there will be no excuse for us, if we do not try to get some conception of art from the masters thus presented to us.