Mr. Charles Sylvester, of Derby, will publish, early in 1816, 



AN ACCOUNT of some IMPROVEMENTS In DOMESTIC 

 CECONOMY, adopted at tile DERBYSHIRE GENERAL 

 INFIRMARY, more especially relating to the Means of Vvrarmiiig and 

 Veritilatine the Apartraetits: with a Detcrlption of the Culinary Depart- ' 

 inent, the Wash-House, Laundry, &c. and Observations on tlieir AppH- 

 calion, to the Comfort and Convenience of Private Familiesj and other 

 important Purposes. 



The "Work will be in Quarto, Illustrated by Ten Plates, exhibiting Plans 

 of the Infirmary, and Working Drawings of ihe different Apparatus. 



*4t* The Price to Subscribers will not exceed 1/. lis. 6d. 

 (Cj" Subscriptions received by Mr. Sylvester, at Derby; and by Long» 

 man, Hurst, Rees, Ornic, and Brovvn, Paternoster- Row, Londpn. 



■ EK,GRAVL\^GS. 



Vol. XXXVIII. Mr.DoNKiN'sTachoiTieier.; — Mr.Ai.LAN'sMathematical 

 ' Dividing Engine. — A 410 Plate of Mr. Loeschkak's Pateat Piano-Forte, 

 and Mr. Liston's Patent Eiiharmonic Oigan. — A Plate to illustrate Mr. 

 Hauy's Paper on the Electricity uf Mincrals.-^Mr. Vv'^ai-kfTi's improved 

 Micrometer. — Mr. Moult's Fihe ing Appar-tus. — Mc.Smith's Method of 

 relieving a Horse fallen in the Shafts cf a loaded Cart. — Mr. John Tayl-or's 

 Air-Exhauster for Mines. — A Renreftntation of the Comet now visible in 

 Ursa Major. — Sir How&kd Douglas's Patent Reflecting Semicircle. — 

 A coloured Map to illustrate Dr. Campbell's Paper on tl.e inferior Strata 

 of the Earth occurring in Lancashire. — Mr. S.\dlek's Apparatus for 

 Smelting of Lead. — A Plali to iliuatrate Mr. William Smith's and Mr. 

 Edward Martin's Reports on the State of the Collieries at and near Nail-i 

 sea, in Somersetshire. — Mr. SADLiiR's Apparatus for Smelting of Lead.— 

 A Plate to illustrate the different Theoriesuf Arches or Vaults, and of Domes. 



Vol.XXXlX. Mr.STEEVENs's New Levelling-StafF.~A Map illustrating 

 the Qreat Derbyshire Denudation. — A Quarto Pfate to iliu-trate the Opti- 

 cal Instrument called the Diacatojnron. — A Plate of Mr. Stkevens's 

 Contrivance for freeing Water- pi|.es from Air: engraved by Mr. Porter. — 

 Mr. Allan's improved Reflecting Circle. — Mr. Wood's inclosed Grind- 

 stone for Pointing Needles, ar.d Mr. WEssTER'i Method of carrying off 

 Steam from Boilers. — Mr. Brunton's improved Pump for raising Water 

 while Shafts or Pits are sinking. — Mr. Hodgson's hnproved Mariner's 

 Compass for correcting the Magr.e^iic Variatio:i;;. — A Quarto coloured Plate 

 to illustrate the Geology of Part of the Vicinity of Dublin, 



Vol. XL A Plate to Illustrate the Foundation of Mr. William Jones's 

 temporary Corn Rick. — Mr. Stephuns's Method of dividing Bricks. — ■■ 

 Seciion of Mr. William Jones's temporary Corn Rick. — Mr. Waistell's 

 Improvement on the Acorn Dibble. — A Plate to illustrate Mr. Tawney's 

 New Thrashing Machine. — Two Octavo Plates descriptive of a New Ma- 

 chine for Pumping V/atcr. — Two Plates descriptive of the Muscular Mo- 

 tion of Snakes. — Figures to illustrate such Portions of a Sphere as have 

 their Attraction exi)ressed by an algebraic Quantity. — Van Helmont's 

 Difii-'rential Thermometer. — Formaticn of Ovals for Gardener*:. — Chavassij's 

 Maiine Transit. — ^A Plate to illustrate Mr. Br.odie's Experiments on 

 the lufluence of the Brain on Vhe Generation ofAuimal Heat, 



