detected without the aid of a magnifier. The screw, which was sent for exhibition to the Society of Arts, is still carefully preserved amongst the specimens of Maudslay's handicraft at the Lambeth Works, and is a piece of delicate work which every skilled mechanic will thoroughly appreciate. Yet the tool by which this fine piece of turning was produced was not an exceptional tool, but was daily employed in the ordinary work of the manufactory. Like every good workman who takes pride in his craft, he kept his tools in first-rate order, clean, and tidily arranged, so that he could lay his hand upon the thing he wanted at once, without loss of time. They are still preserved in the state in which he left them, and strikingly illustrate his love of order, "nattiness," and dexterity. Mr. Nasmyth says of him that you could see the man's character in whatever work he turned out; and as the connoisseur in art will exclaim at sight of a picture, "That is Turner," or "That is Stansfield," detecting the hand of the master in it, so the experienced mechanician, at sight of one of his machines or engines, will be equally ready to exclaim, "That is Maudslay;" for the characteristic style of the master-mind is as clear to the experienced eye in the case of the finished machine as the touches of the artist's pencil are in the case of the finished picture. Every mechanical contrivance that became the subject of his study came forth from his hand and mind rearranged, simplified, and made new, with the impress of his individuality stamped upon it. He at once stripped the subject of all unnecessary complications; for he possessed a wonderful faculty of KNOWING WHAT TO DO WITHOUT--the result of his clearness of insight into mechanical adaptations, and the accurate and well-defined notions he had formed of the precise object to be accomplished. "Every member or separate machine in the system of block-machinery," says Mr. Nasmyth, "is full of Maudslay's presence; and in that machinery, as constructed by him, is to be found the parent of every engineering tool by the aid of which we are now achieving such great things in mechanical construction. To the tools of which Maudslay furnished the prototypes are we mainly indebted for the perfection of our textile machinery, our locomotives, our marine engines, and the various implements of art, of agriculture, and of war. If any one who can enter into the details of this subject will be at the pains to analyse, if I may so term it, the machinery of our modern engineering workshops, he will find in all of them the strongly-marked features of Maudslay's parent machine, the slide rest and slide system--whether it be a planing machine, a slotting machine, a slide-lathe, or any other of the wonderful tools which are now enabling us to accomplish so much in mechanism."