MECHANICS AND USEFUL ARTS. 53 



book is given with it. And, to make every thing complete, M. Soyer 

 gives receipts and instructions for the cooking of about a dozen and a 

 half of dishes, by means of this pocket-kitchen of his. He has, more- 

 over, fitted up a small box, in size and shape like a lawyer's deed- 

 box, with a complete apparatus for cooking and sending up a dinner 

 for twelve persons. The magic stove will go on cooking for about 

 forty-eight minutes with one charge of spirits of wine, the cost of 

 which is just fourpence halfpenny. We have partaken of chops and 

 steaks cooked by the magic stove, and they are certainly far superior 

 to those cooked by any of the ordinary methods. The heat is so in- 

 tense, that the exterior of the chop or steak is at once carbonized, and 

 thus the juices are retained without the chop being burned, so that it 

 is at the same time crisp and succulent. London paper, May 30. 



GAS STOVE. 



MR. W. S. WARD described to the British Association, at Edin- 

 burgh, a gas stove, the novelty of which consists in constructing it of 

 iron plates in a vertical position, so as to expose considerable surfaces 

 for the absorption of heat from jets of gas, and for the radiation of the 

 heat. This apparatus is sufficient to raise the temperature of a mod- 

 erate-sized room from 5 to 10 F., with a consumption of about three 

 feet of gas per hour, costing about two pence for ten hours. The 

 stove consists first of a sheet of plate-iron, to fill up the usual opening 

 of a fire-place, with a hole through for a chimney, and two other 

 plates of iron placed about three inches apart, and inclosed round the 

 rim ; near the bottom are perforations to admit air, and a small door 

 with a burner, consisting of several small jets inside ; when the gas 

 is lighted, it heats the air inside, and the surface of the two iron 

 plates ; by this arrangement all unpleasant effluvia are conveyed away 

 through an iron pipe made near the top, which leads into the chimney 

 of the room. Civil Engineer and Architect's Journal, Oct. 



LAMPS FOR BURNING-FLUID. 



AT the meeting of the Franklin Institute, on Sept. 19, a report was 

 presented from a committee appointed to examine some lamps for 

 burning camphene, &c., the invention of Mr. S. E. Winslow, of 

 Philadelphia. "The improvement consists in the employment of a 

 double system of lamp-wick, instead of the single continuous wick used 

 heretofore. One portion of wick passes down into the fluid, and, 

 by capillary attraction, elevates the fluid to the top of the lamp; 

 the other portion of wick passes only through the tubes of the lamp, 

 and covers the lower surface of the movable top. When the top of 

 the lamp is screwed down to its place, the two portions of wick are 

 brought into close contact, and the fluid passes readily, by capillary 

 attraction, from one to the other. When it is desired to replenish the 

 lamp while lighted, the top with its portion of wick is removed, and 

 placed at any convenient distance, this part of the wick retaining a 

 sufficient quantity of the fluid to support the flame during the time oc- 



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