ENGRAVINGS. 



Vol. XLV, A Plat* to illustrate the Nourishment producecf to the 

 Plant by its Leaves. B7 Mrs. Ibbetson. — A Plate to illustrate Mr. 

 Bakewem.'s Sketch of the Arrangement of the Rocks and Strata in the 

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

 Buchanan's Description of the Steam-Boats on the Clycfe j and Mrs. 

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

 the Root alone. — A Plate to iJl«strate Mr. John V/auters's Improve- 

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

 Plate of Mr. Singer's Electric Columns ; Mr. Walker's Electrometer ;| 

 Rochon's Apparatus for ascertaining th^ Heat of coloured Rays. { 



• Vol. XLVI. Mr.T. Jones's New Rofiecting Compass. — Mr. Woolf'^I 

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

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

 f ossibihty of Steam escapiiag past the side of the Piston is eflPectually pre- 



vented. A Plate to illustrate same Electrical pxperimentsbyM.DENELis 



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



A Plate to illustrate the Electrical Ex'periments ofM. De Nkhs of 



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

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

 illustrative of Dr. Brewster's Paper on Light.— A Quarto Plate to il- 

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

 Methods of lighting the Mines so as to prevent its explosion ; and the Ac-j 

 count of Mr. STEPHENso.\i's Safe- Lam p. for Coal-Mines. 



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

 SPHERE of Dendera, — A Ouarto Plate to illustrate Mr. Brown's Paper 

 on Architecture. — A Plate"to illustrate Sir George Cayley'i Paper on 

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

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

 Ramsgate. 



Vol. XLVIII. AQuarto Plate of the Strand or Waterloo Bridge erected 

 over the Thames at the Savoy, London. — A Quarto Plate to illustrat* 

 Mr?. Ibdetson^s Anatomy of Vegetables. — A Quarto Plate to illustrate! 

 Mrs.lBBETSON's Paper OH the Physiologv of Vegetai)les. — A large Quarto 

 Plate to illustrate Mrs, Ibbetson's Paper on a new View of Vegetable Life, 



, A Quarto Plate to illustrate Mrs. Ibbetson's Paper on the Physiology 



of Vegetables ; and Mr. Mornay's Ma^s of Native Iron tound in Brasil. ' 



Vol. XLIX. A Plate to illustrate Dr. Evans's Communication ori 

 Terrestrial Magnetism ; a new Electro-atmospherical Instrument ; and 

 Mr. Andrew Hori^'s Paper on Vision.~A Quarto Plate to illustrate 

 Mrs.lBBETSON's Physiology of Vegetables. — A Plate to illustrate the 



-and Mji- Bevan'i 



.Emmktt'i 



from the Sun, 



ice. • also a New Reflecting Goniometer. — A Plate to illustrate Chevali« 

 Baader*s Method of comnmnicating Rotatory Motion; Lieut. Shuld 

 ham's improved Method of working a Capstan ; and Steele's new Mo. 

 dificatlonof Noom's Apparatus, &c. 



Vol. L. A Plate to illustrate Sir Humphry Davy's new Researchej 

 on Flame, and Sir George Caylky's Paper on Aerial Navigation.— 

 A Plate representing a Section of the Pneumatic Cistern, with the com 

 pound Blow-pipe of Mr. Hare ; and a Sketch of a Steam-Vessel m 

 tended to run bctweeji London and Exeter. — Represeptation of Apparatu; 

 for Sublimation of iodine — Model of a Safety Furnace by Mr. Bakeweli 



