and of Rural Improvement generally, during 1839. 727 



ice who have hitherto not been able to afford the expense. 

 We refer the reader to our account of this invention in 

 p. 654. The next improvement we shall notice, is one which 

 has been introduced nearly half a century, but which, strange 

 to say, has made but very little progress compared with its great 

 merits. This is the Roasting Oven, invented by the late Mr. 

 William Strutt of Derby ; and of which we have lately seen 

 one in the house of Mr. Joseph Strutt, which has been in daily 

 use for upwards of thirty years ; saving much labour and fuel, 

 and roasting every description of meat in a manner superior to 

 an open fire. We shall not stop here to describe this oven, 

 as we have done so in our Encyc. of Cott. Arch. ; but shall 

 rather refer our readers to Mr. Joseph Hunt, ironmonger, 

 Derby, who fits up these ovens for 10/. 105., including all ex- 

 penses, except carriage and travelling; and to Mr. Stephens, 

 ironmonger, Great Russell Street, Bloomsbury, who has been 

 in the habit of fitting them up occasionally in the metropolis 

 and its neighbourhood. An economical hot-closet is described 

 in p. 447., and an improvement on Arnott's Stove is noticed in 

 p. 446. ; the greatest improvement in this stove, however, has 

 been made by Mr. Jeakes, Great Russell Street, who, by placing 

 it within a case and introducing fresh air, has rendered it ef- 

 fective in ventilating, as well as in heating. Dr. Arnott himself 

 has also made some improvements in this stove ; but, though we 

 have examined those recently erected under his direction in the 

 Custom-House, they do not appear to us, even on the large 

 scale in which the}' are formed in the Long Room of that build- 

 ing, to give sufficient ventilation. In short, this is only to be 

 accomplished by the principle adopted by Mr. Strutt in his 

 cockle stove, by which fresh air heated to a proper temperature 

 is continually introduced. This has been done by Mr. Strutt, 

 by smoke, on a large scale ; and by Mr. Jeakes, in his improve- 

 ment on Arnott's stove, by smoke on a small scale; while, by 

 Mr. Manby and others, it is effected by hot water. In the 

 case of small houses this plan is unsuitable, and perhaps Ar- 

 nott's stove, as improved by Jeakes, will be found preferable ; 

 but, in all large houses, a cockle or hot-water apparatus placed 

 on the cellar floor, and the heated air admitted into the hall and 

 staircase, are all that is required for comfort. This has been ably 

 shown by a philosophic writer in the Architectural Magazine, 

 who possesses one of the most complete houses in Britain, which 

 we hope shortly to be able fully to describe. We have examined 

 the Chunk Stove, a contrivance closely allied to a stove described 

 in the Mechanics Magazine, vol. xxii. p. 81., and to Kirkwood's 

 Stove, which, as being suitable to small green-houses, we intend 

 to describe in our next Number. Various other improvements 

 in close stoves and open fire places have also been examined 



