ENGRAVINGS. 



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

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

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

 MENTiNi's new Apparatus for producing Oxygen Gas to restore sus- 

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

 Rays — and Mr. Hargreaves's Observations on Colours. — A Plate to 

 illustrate Mr. J, Whitford's mecljanical 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. Pad- 

 bury's Guard for a Carriage-wheel. — A Plate to describe 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 an Improvement of the Galvanic Trough ; and a 

 new Apparatus for preparing pure Muriatic Acid. — A practical Diagram 

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

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

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

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

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

 crystallized Bodies.-^A Plate to ill.ustrate Dr. Brewster's Paper given 

 in our last Number. 



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

 Plant by its Leaves. Ry Mrs. Ibbetson. — A Plate to illustrate Mr, 

 BAKEw;-LL*b Sketch of the Arrangement of the Rocks and Strata in the 

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

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

 Ibbetson's Paper proving tliat the Embryos of the Seeds are formed m, 

 the R(K)t alone — A Plate to illustrate Mr. John Walters's Improve- 

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

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

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

 Rays. 



Vol. XLVI. Mr.T. JoNEs'i New Reflecting Compass .Mr. Woolf's 



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

 trate Mr.. Woolf's Impioveme.it on the Steam-Engine, by which the 

 possibility of .Steam escaping past tlie side of the Piston is effectually pre- 

 vented. — A Plateto illustrate sorteElecrricalExperimcnts by M.DeNelis 

 of Mahnes; with an Extension of them by Mr. Singer and Mr. Crosss. 

 — A Plate to illustrate the Electrical Experiments of M. De Nelis of 

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

 EvANb"s Paper on guiding Balloons through the Atmosphere. — A Plate 

 illustrative of Dr. Brewstf.r's Paper on Light. — A 4to Plate to illus- 

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

 tliods of lighting the Mines so as to prevent its Explosion j and the Ac- 

 coimt of Mr. Stephfnson's Safe-Lamp for Coal-Mines. 



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

 iPHEREof Dendeka.— A Quarto Plate to. illustrate Mr. Brown's Paper 

 on Architecture. — A Plate to illustrate Sir George Caylet's Paper on 

 A irial Navigation; and Mr, Lonuon's Hydrometer. — A Quarto Plate 

 nf the Temple of Kouniou at f hebeij— ^A• Plate of th« nev/ Baths ^t 

 Ki^nygatc. 



