Hobbema ranks first amongst the old landscape painters for fresh, pure colour, and close adherence to nature. 'The Avenue, Middelharnis,' 830, is as fine a piece of work as any modern work; it is true and rigid to facts, with a fine command of drawing, perspective and colour--one of the few landscapes really worth copying in the Gallery. Salvator Rosa is perhaps one of the most spontaneous amongst these early landscapists, and the most reckless. He painted a picture at the one working, and composed a poem afterwards by way of relaxation, and although almost as exaggerated and theatrical in his effects as Gustave Doré, yet his works have an appearance of nature about them, even if it is nature convulsed, which is often lacking about the manufactured efforts of his contemporaries, Claude Lorraine and Gaspard Poussin. 'Mercury and the Woodman,' 84; 'Tobias and the Angel,' 811; and 'A River Scene,' 935, are fair examples of this vigorous artist and versifier. That of 'Mercury and the Woodman' I like the best. Gaspard Poussin ranks between Salvator Rosa and Claude, not because he was not so good a workman, but because he was not so original in his style as either. His two best examples in the Gallery are 'The Sacrifice of Isaac,' 31, and 'A Land Storm,' 36. 'Dido and Æneas taking shelter from the Storm,' 95, is also a fine work. Everyone who admires Turner must certainly honour Claude Lorraine; and as I am one of those admirers, I look upon the earlier painter of sunsets, classical temples, and artistically arranged trees with much interest. He does not, of course, paint atmosphere; only one master did this properly, and that was Turner, but he presents to us a placid and smiling world which promotes comforting thoughts of rest and joy, and so I give him all due honour as a pretty landscape painter and also an original master. What he did came from his own invention, and if Turner painted better, that was only because he commenced where Claude, his first master, had left off.