^: 



engravings; 



▼•1. XLII. A Plate containing Prvifessor Leslie's Atmometer, and 

 yirurcs to illustrate Dr. Wollaston's Paper on the elementary Particles 

 of certain Crystals.— A Sketch of that Part of the Island of Java which 

 contains the natural Lake of Sulphuric Acid.— Interior of Volcano in the 

 Island of Java, aud Figures to illustrate Mr. Walker's Paper on the Elec- 

 • trie Fluid.— A Plate lo illustrate M. Link's Memoir on the Anatomy of 

 Plants, and Dr. Wolla-stok's Cryophorus.— A third Plate to illustrate 

 M. Link's Memoir on the Anatomy of Plants. — Mr. T.Jones's Secio- 

 graph, — a new Instrument for dividing right Lines into equal PartS;, measur- 

 ing Angles, and inscribing Polygons in-the Circle, &c. 



Vol, XLTII. A Plate to illustrate a New Transit Instrument invented 

 by Sir H. C Englzfield, Bart. — A Plate to Illustrate the Use' ofAir- 

 Vessels in Plants. By Mrs. Ibeetson.— A Plate to illustrate M. Se- 

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

 pended Atjimation^— Mr. Reade'« Paper on the Refraction of the Sokr 

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

 illustrate Mr. J. WhiY ford's mechanical Substitute for Leeches; and Mt- 

 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- 

 prpe; a Proposal for an Improvement of tlje Galvanic Trough ;- and a 

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

 for, obtaining the Lunar Dist.ances observed by a Sextant.- — Electrical 

 Apparatus to illustrate Mr. Bp-ande's Paper on some new Llectilcal 

 .Pha'nomena.---A du;irto Plate to illustrate Mrs. Iebetson'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 Bqdies.-^A Hate to illustrate Dr. Bii£v/sTEp.'s Paper given 

 in our last Number. 



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

 Plant by its Leaves. By Mrs. Jbeetson, — A Plata to illustrate Mr. 

 Bakewell's Sketch of the Arrangement of the Rocks 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. 

 Idbetson's Paper proving that the Lmbryos of the Seeds are formed :r. 

 the Root alone. — A Plate to illustx-aie Mr. John Walters's Improve- 

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

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

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

 Rays. 



Vo\. XLVI. Mr.T. Jones's Ne\r Reflecting Compass.— Mr. Woolf's 

 Patent Boiler for Steam JEngines aud other Purposes. — A Plate to illus- 

 trate Mr. Woovr's improvement on the Steam-Engine, by 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.DuNelis 

 of Malinesi with an Extension of them by Mr. SiNfSER and Mr. Crossb. 

 — A Plate to illustrate die Electrical Exjviriments of M. DeNklis of 

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

 Evans's Paper on guiding Balloons through the Atmosphere.— A Piute 

 flhistrative of Dr. Brewstex's Paper oa Light, 



