ENGRAVINGS. 



Vol. XLIII. A Plate to illustrate a New Transit Instrument Invented 

 by Sir H. C. Ekglefield, Bart. — A Plate to illustrate the Use of Air- 

 vessels in Plants. By Mrs. Ibbetson.— ^A Plate to illustrate M. Se- 

 MEUTiNi's new Apparatus for producing Oxygen Gas to restore s\is- 

 pended Animation — Mr. Reade's Paper on the Refraction of the Solar 

 Kays — and Mr. Hargreaves's Observations on Colours. — A Plate lo 

 illustrate Mr. J. Whitford's mechanical Substitute for Leeches; and Mr. 

 J. Tilley's Hydro-pneumatic Blow-pipe. — A Plate to describe Mr. 

 R. Hughes's Gudgeon for the Shaft of a Water-wheel; and Mr. P^jd- 

 bury's Guard for a Carriage-wheel. — A Plate todesnibe Captain Peat's 

 Temporary Ship's Rudder. — ^A Quarto Plate of Mr. Samuel Jones's 

 Sofa Bed. , 



Vol. XLIV, A Plate to illustrate Mr. Hume's Gazometer and Blow- 

 pipe ; a Proposal for zf. Improvement of the Galvanic TrouQ;h ; and a 

 hew Apparatus for preparing pure Muriatic Acid. — A practical Diagram • 

 for obtaining the Lunar Distances observed by a Sextant. — Electrical 

 Apparatus to illustrate Mr. Brandk's Paper on some new Electrical 

 Phasnomena.— A Quarto Plate to illustrate" Mrs. Ibbetson's Paper on the 

 Cuticle of Leaves. — Brumton's Patent Chain Cable. — Figures relative to 

 Dr. Brewster's Paper on the Affections of Light transmitted through 

 crystallized Bodies.— A Plate to illustrate Dr. Brewster's Paper given 

 in our last Number. < ■ 



Vol. XLV. A Plate to illustrate the Nourishment produced to the 

 Plant by its Leaves. By Mrs. Ibbetson. — A Plato to illustrate Mr. 

 Bakewell's Sketch of the Arrangement of the Pvocks and Strata in the 

 Northern Counties of England. — Plates to illustrate Mr. Robertsom 

 Buchanan's Description of the Steam-Boats on the Clyde; and Mrs, 

 Ibbetson's Paper proving that the Embryos of the Seeds are formed in 

 the Root alone — A Plate to illustrate Mr. John Walte^s's Improve- 

 ments in Naval Architecture. — A Quarto Plate on the Roots of Plants. — 

 An Octavo Plate of Mr. Singer's Electric Columns; Mr. Wjilker's 

 Electrometer; Rochon's Apparatus for ascertaining the Heat of coloured 

 Rays. 



Vol. XLVI. Mr.T. Jones's New Reflecting Compass. — Mr.WooLF's 

 Patent Boiler for Steam Engines and other Purposes. — A Plate to illus- 

 trate Mr. Woolf's Improvement on the Steam-Engine, Jiy .which the 

 possibility of Steam escaping past the side of the Piston is effectually pre* 

 vented.— A Plate to illustrate some Electrical Experiments by M.DrNelus 

 ©f Malines; with an Extension of them by Mr. Singer and Mr. Crosse. 

 — A Plate to illustrate th« Electrical Experiments of M. De Nei is of 

 Malines.— Woolf's improved Steam-Engine. — A Plate to illustrate Mr. 

 Etak^'s Paper on guiding Balloons through the Atmosphere. — A^Plate 

 illustrative of Dr. Brev/ster's Paper on Light. — A ^to Plate to illus- 

 trate Sir H. Davy's Paper on tlie Fire-damp of Coal-Mines, and on Me- 

 thods of lighting the Mines so as to prevent its Explosion; and the Ac- 

 count of Mr. Stephenson's Safc-Lamp for Coal-Mines. 



Vol. XLVII. Illustrated with a Quarto Plate describing the Plani- 

 sphere of Dendera. — A Quarto Plate to illustrate Mr. Bk^own's Paper 

 on Architectnre. — A Plate to illustrate Sir George Cayley's Paper on 

 Aerial Navigation; and Mr. London's Hydrometer. — A Quarto Plate 

 of the Temple of Koumou at Thebes.— A Plate of the new Baths at 

 Ramsgate. 



Vol. XLVIII. A Quarto Plate of the Strand or Waieiloo Bridge etectcd 

 over the Thames at the Savoy, London. 



