After the departure of General Simcoe from Canada, Castle Frank was occasionally made the scene of an excursion or pic-nic by President Russell and his family; and a ball was now and then given there, for which the appliances as well as the guests were conveyed in boats up the Don. At one time it was temporarily occupied by Captain John Denison, of whom hereafter. About the year 1829, the building, shut up and tenantless at the time, was destroyed by fire, the mischievous handiwork of persons engaged in salmon-fishing in the Don. A depression in the dry sand just beyond the fence which bounds the Cemetery of St. James, northward, shews to this day the exact site of Castle Frank. The quantity of iron that was gathered out from this depression after the fire, was, as we remember, something extraordinary, all the window shutters and doors having been, as we have said, made of double planks, fastened together with an immense number of stout nails, whose heads thickly studded the surface of each in regular order. The immediate surroundings of the spot where Castle Frank stood, fortunately continue almost in their original natural state. Although the site of the building itself is outside the bounds of the Cemetery of St. James, a large portion of the lot which at first formed the domain of the château, now forms a part of that spacious and picturesque enclosure. The deep glen on the west, immediately below where the house was built, and through which flows (and by the listener may be pleasantly _heard_ to flow) the brook that bears its name, is to this day a scene of rare sylvan beauty. The pedestrian from the town, by a half-hour's easy walk, can here place himself in the midst of a forest solitude; and from what he sees he can form an idea of the whole surrounding region, as it was when York was first laid out. Here he can find in abundance, to this day, specimens, gigantic and minute, of the vegetation of the ancient woods. Here at the proper seasons he can still hear the blue jay; the flute notes of the solitary wood-thrush, and at night, specially when the moon is shining bright, the whip-poor-will, hurriedly and in a high key, syllabling forth its own name. _5.--On to the Ford and the Mills._ We now resume our ramble up the valley of the Don. Northward of the gorge, where Castle Frank Brook entered, and where so many other deep-cut ravines converge upon the present channel of the stream, the scenery becomes really good.