ENGRAVINGS. 



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

 hy Sir H. C. Englefield, Bart. — A Plate to illustrate the Use of Alr.» 

 Vessels in Plants. By Mrs. Ibbetson. — A Plate to, illustrate M- ijE- 

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

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

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

 .ilIuG.trate Mr. J. Whitfoed's mechanical Substitute for Leeches; and Mr, 

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

 R. Hughes's Gudgeon for tlie Shaft of a V/ater-wheel ; and Mr.' Pad« 

 3ur.y'^ Guard for a Carriage-wheel. — A Plate to describe Captain Pkat"? 

 Tcmporavy Ship's Rudder.— ^A Quarto Plate ef Mr. Samusi, JoNis*^ 

 SefaBed. • ■ - 



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

 pipe; a Proposal for*an Improvement of the Galvanic Trouqh ; and q, 

 new Apparatus for preparing pure Muriatic Acid. — A practical Diar-ram 

 for obtirining the Lunar Distances observed by a Sc-ttant. — Electrical 

 Apparatus to illuslTate Mr, Bp.ands's Paper on some new Electrical 

 Phenomena.— A Quarto Plate to illustrate Mrs. Ibbetscn-'s Paper on the 

 Cuticle of Leaves.— H3r.un ton's Patent Chain Cable. — Figures relative to 

 Dr. Brewster's Paper on tlie Aftections of Light transmitted throagh 

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

 in our l.*ist Number. ' 



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

 Plant" by its Leaves. By Mm. Tbbetson. — A Plate to illustrate Mr, 

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

 Northern Counties of England.-^Places to illustrate Mr. Robek.tson 

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

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

 t!)e Root alone. — A Plite to illustrate Mr. John Walters's Impro\'e- 

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

 Vn Octavo plate of Mr. Sinoj-r's Electric Columns; Mr. Walker'-; 

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

 Rays. 



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

 patent Boiler for Steam Engines and other PCrposes. — A Plate to illus- 

 trate Mr. Woolf's Improvement on the Steam-Engin?, by which thfj 

 possibility of Ste,am escaping past the side of the Piston is elFectually pre- 

 vented. — A Platep illustrate some Electrical Experiments by M.DeNelis 

 of Malipesv with an Extension of them by Mr. Singer and Mr. Caossr., 

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

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

 Evans's Paper on siuiding Balloons through the Atm.:>'>ph(?rc. — A" Plate 

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

 trate Sir H. Davy's Paper on the Fire.«;lamp of Coal-Mines, anJ on Me- 

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

 fonnt of Mr, Stephenson's Sa.'^e-Lamp for Coal-Mines. 



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

 SPHERE of Di-NDERA.— A Quarto Plate to illustrate Mr. Brown's Paper 

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

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

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

 Ramsgate. 



Vol. XLVIII. A Quarto Plate of the Strang or Waterloo Bridge erscted 

 •ver the Thames at the Savoy, London. — A Quarto Plate to illustrate 

 ^J^s, Ibbitson's Anatomy of Vegetables. 



