This 5 Day it publishe ed i in 8vo. with Four Plates by Lowry, 
yen Price 3 16s. Boards, CUR ae 
EME TS of ELECTRICI rY and ELECTRO- CHEMISTRY, 
ie ycludit GatvanisM and Vorraic. Exvgcrricity : with original. 
e its, and a Description « of a new System of Electrical Insulation. — 
"By GEORGE JOHN SINGER. 
. Printéd for ee , Hurst, Rees, Orme, and Brown, Paternoster- Row; ; 
nd R. * ee Co St. cone wn Gee aii 
t A fe superior Paper, Bue contain two real 
Price 17. 10s. extra Boards. These are 
"s. ‘Steet Cavendish Square. ata 
ENGRAVINGS. : SUE 
hire Denudation —A Quarto Plate to illustrate the Opti- 
called the Diacatoptron.— A Plate of Mr. STBevens’s 
g Water- pipes | from Air: engraved by Mr. Porter.— 
d Reflecting ‘Circle —Mr. Woon’s inclosed Grind- 
and Mr. Wensrten’s Method of carrying off 
s improved Pump for raising Water 
r ie. Hopeson’s improved Mariner’s 
the Magnetic Variations—A_ Quarto coloured Plate 
sy of Part of the Vicinity of Dublin. 
illustrate t the Foundation of Mr. WILLIAM Jonss's s 
Mr. Srepuens’s Method of dividing Bricks,— 
am Jc s temporary Corn ‘Rick.—Mr. WaisTz.v’s 
orn Dibble —A Plate to illustrate Mr. Tawney’s 
ctavo Plates” descriptive of a New Ma- 
ra 
h Portions of a Sphere as have 
s for Gaeta as en Ai2 SE's” 
re "Scaffold; and 
‘a Car teres fallen 
Me. SrervEns’s s New Levelling-Staff.—A Map ilustrating 
lates descriptive of the Muscular Mo- © 
Quantity—Vay Heumont’s © 
batey: Particles: 
1 of Java which — 
‘Volcano in, the 
Paper on the. Elec- 
iron the Anatomy of — 
Plate. to “illustrate ot 
Jo 
