mechanical powers for piercing the iron plates—four inches and a half thick—for rivets, shaping them under hydraulic pressure to the finest tapering turns of the ship’s lines, and paring them away, with knives shaped like the beaks of strong and cruel birds, to the nicest requirements of the design! These machines of tremendous force, so easily directed by one attentive face and presiding hand, seem to me to have in them something of the retiring character of the Yard. ‘Obedient monster, please to bite this mass of iron through and through, at equal distances, where these regular chalk-marks are, all round.’ Monster looks at its work, and lifting its ponderous head, replies, ‘I don’t particularly want to do it; but if it must be done—!’ The solid metal wriggles out, hot from the monster’s crunching tooth, and it _is_ done. ‘Dutiful monster, observe this other mass of iron. It is required to be pared away, according to this delicately lessening and arbitrary line, which please to look at.’ Monster (who has been in a reverie) brings down its blunt head, and, much in the manner of Doctor Johnson, closely looks along the line—very closely, being somewhat near-sighted. ‘I don’t particularly want to do it; but if it must be done—!’ Monster takes another near-sighted look, takes aim, and the tortured piece writhes off, and falls, a hot, tight-twisted snake, among the ashes. The making of the rivets is merely a pretty round game, played by a man and a boy, who put red-hot barley sugar in a Pope Joan board, and immediately rivets fall out of window; but the tone of the great machines is the tone of the great Yard and the great country: ‘We don’t particularly want to do it; but if it must be done—!’ How such a prodigious mass as the Achilles can ever be held by such comparatively little anchors as those intended for her and lying near her here, is a mystery of seamanship which I will refer to the wise boy. For my own part, I should as soon have thought of tethering an elephant to a tent-peg, or the larger hippopotamus in the Zoological Gardens to my shirt-pin. Yonder in the river, alongside a hulk, lie two of this ship’s hollow iron masts. _They_ are large enough for the eye, I find, and so are all her other appliances. I wonder why only her anchors look small. I have no present time to think about it, for I am going to see the workshops where they make all the oars used in the British Navy. A pretty large pile of building, I opine, and a pretty long job! As to the building, I am soon disappointed, because the work is all done in one loft. And as to a long job—what is this? Two rather large mangles with a swarm of butterflies hovering over them? What can there be in the mangles that attracts butterflies?