By taking the train from the arsenal station the visitor will easily escape passing through the dirty streets of Woolwich, which lie between the arsenal and the dockyard, and those who have not seen this latter magnificent establishment may spend a very agreeable hour or two. There are the enormous chimney-shaft--a landmark for miles; the engine-house; the saw-mills, with their marvellous machinery; the huge Nasmyth's hammer, which can be made to crack a nutshell without injuring the kernel, or snap an iron bar like a rotten stick on the anvil. There, too, are the building slips, with the shipwrights hammering with an incessant din on the grand three-decker, piled up beam on beam, to which access is gained by inclined planes, reaching to the top of the factory-like structure. The yard is nearly a mile in length; the docks, the gunboats, the steel-plated floating batteries, the beautiful chapel built by Mr Scott, and a passing look at the craft on the Thames, will afford ample opportunity to indulge and gratify curiosity. Leaving convicts and policemen, I now ascend the hill, on one side of which, among the trees, may be discerned the splendid new buildings of the hospital, and pass the barracks of the marines, capable of containing nearly 2000 men. A short walk farther, and I pass through a wicket-gate near the guardhouse, in front of which is the open common, with the Royal Military Academy for the cadets on the east, and crowned with the woods of Shooter's Hill. To the left is the long range of the barracks of the Royal Artillery; while to the right is a park of artillery, gun-carriages, waggons, and limbers, divided by a road leading down to a pretty, picturesque valley, containing a small sheet of water, on which pontooning, passage of troops, diving, and transport of artillery are practised and carried out. Above it, on the opposite side, over the broken undulating ground, diversified by clumps of fir-trees, is seen the tent-like building known as the Rotunda, in front of which is an earthwork, green with turf, but having the dark muzzles of guns peeping through the grassy embrasures of the Repository ground. A monument to Sir Alexander Dickson stands in the enclosure, which is entered by a gate, and near by is a French cannon captured by Marlborough at Malplaquet, and many other specimens of the old style of ordnance. The Rotunda itself was removed from Cariton Gardens, where George the Fourth, then Prince Regent, entertained in it the allied sovereigns in 1814: it now contains models of fortifications, dockyards, every arm used by the artillery, and every conceivable specimen of bomb-ships, shields, kettle-drums, tilting lances, armour, all kinds of weapons, and all sorts of ordnance; trophies won by our soldiers in every quarter of the world; and a cinder that represents what was once fifty-six millions of one-pound notes burned by the Bank of England when they were called in.