This Day is pushed in Svo. with Four Plates by^Lowry, 



Price I06. Boards, 

 >(rVT(: r V r F rTRICITY and ELECTRO-CHEMISTRY, 

 I EMENTS S of ELEC1 R CI1J ElectriC1TY : with original 



'^ fand aS-i uo„ of a new System of Electrical InsulaUon. 



By GEORGE JOHN SINGER. 

 Vinted for Longman, Hurst, Rees, Orme, and Brown, Paternoster-Row , 



S hS only'by appSon to Mr. S INGE k, No. 3, M Street, Caven- 



ENGRAVINGS. 

 v 1 XYX1X MpSTEEVENs'sNewLeveirmg-Staff.-AMa P niustrat.n S 

 Vol.XXXlA. iviP.J"ttv»« n„ ar to Plate to ustrate the Opti- 



E Great Derbyshire Denudation.-A Quarto la e to Steevens . s 



1 Instrument called the Diacatop ™'~ A J'^J L, ?£ . p 0RT E R — 

 3 ntrivance for freeing Wate-p.pes f g™ f^^.f^u^ Grind- 



[r. Allan's rPlflf efl .S ^ m Mr Web'»tiV« Method of carrying off 

 one for anting ; Needl s and Mr. Webjt^ p^ ^ | ^ 



team from Boiler^.— Mr. UR unto in £r nnGSON ' s improved Mariner's 



emporary Com Kick, Mr Corn Rick ._ M r. Waistell's 



Action of Mr W "'^ Kbble - A Plate to illustrate Mr. Tawney's 

 mprovemen on the Acorn lJibble. a descri tive of a New Ma- 



J^r^oC^lter-^ of 1 the Muscular Mo- 



^ e J^nrcr-F^u«' to illustrate such Portions of a Sphere as have 

 ion ot bnaKcs. ri S ul algebraic Quantity.— Van Helmost s 



scopic Camera Obscura an a MK -° P k AddWc „ „f Numbers 



C t Tca^fand M^a Kfc D«. rt hanging Scaffold, and 



51 Z\Z A Plate to illustrate Mr. Machell's Annular Saw. 

 M V C , XLU A Plate containing Professor Leslie's Atnometer and 

 Vol. XLU. ^ 1 ' aiS w & ON » s p a per on the elementary Particles 



Figures to diustratc Dt Wol^stm . p ^ rf Java wh; 



of certain Crystals — A oKetcn o _ in _ Interior of Volcano in the 



TCWtrSltatl- SS£W, Paper on the E.ec- 

 Is and of Java, and Figure Mcmolr on the A my of 



fng Angles, and inscribing Polygons in the Circle, &c. 



