ENGRAVINGS. 



Vol. XLTX. A Plate to illustrate Dr. Evans's Communication on 

 Terrestrial Matrnetisin ; a new EVectro-atmcspherical Instrument ; and 

 ^|r. Amurew Horn's Paper on Vision,— A Quarto Plate to illustrata 

 Mrs. Ibbetcos's Phvsielooy cf Vegetables. — A Plate to illustrate' the 

 tsolar JSoors which appeared during the Year 1816; — apd Mr. Beyan's 

 Imprdvemcnt ontl?e Sliding- Rule. — A Plate descriptive of Mr.EwMETx's 

 Instrumeilt for the Measiirtment of the Moon's Distance from the Sun, 

 4h:c. ; al-o a Nevv Reflecting Goniometer .-^A Plate to illustrate Chevalier 

 Bajid&r's Methnd of comn.ninicaiing Rotatory Motion ; Lieut. Shui.d- 

 HAT.i's imprnve'd Method of working a Capstan ; and Steele's new Mo- 

 cinc'ition of Nooth's \pparatns, &c. 



Vol. }j. A Plate to illustrate Sir Humphry D.4Vy's new Researches 

 en Flarrxs ^nd Sir Geo^ue Cavlev's Paper on Ai'rial Navigation. — 

 A Plate reprosenlin_fl; a Section of the Pneumatic Cistern, with the com- 

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

 tended to run between London and Exeter,— Representation of Appafatas 

 for S|TblimatIon of Iodine— Model of a Safety Furnace by Mr. Bake well 

 : — Apparatus for consuming Fire-^amp in the Mine — and Apparatus for 

 Ye-llghting tiie Miners' Davy. — A Plate illustrative of the New Patent 

 Horizonfai Water- Vv^hecl of Mr. Adamson. — A Plate illustrative of Mrs. 

 . Ibbetson's Theory of the Physiology of Vegetables. — A Plate to illus- 

 trate Mr. DicKiHsoN-'s new System of Be.iconing. 



Vol. LI. A Plate illustrative of Mr. Cap el Lofft's Paper on tiie 

 Probability of Meteorolites being projected from" thfe Moon. — Two 

 plates : one, of Mr. PI, Tritton's Improved Apparatus for Distillation ; 

 aftd unother, of the Figures in Bradley's Gardening illustrative of the Ar- 

 tide on the Kaleidoscope. ^^A Plate illustrative of Mrs, Ibbetso.n's Pa- 

 per on the Anatomy of Vegetables; and Mr.TREDGOLD's on Revetements, 



Vol, LU. A Plate illustrative 'of Mr. Upington's Electrical In- 

 c;easer for the unerring Manifestation of small Portions of the Electric 

 Fluid. — A Pliiie iliustrative of Mrs. Ibbetson's Paper ontlie Fructifica- 

 tion of Plarits.— A Pl.ite illustrative of the. Rev. John Michell's Theory 

 of the Formation of the Earth. — A Plate illustrative of Capt, Katbr's 

 Article on the Pendulum ; and New Apparatus for impregnating Liquids 

 with Gases. — A Pl.ite illustrative of Sir H. Davy's Apparatus for Vola- 

 tilization of Phosphorus, and Mr* Smith's Essay on tlic Structure of th«i 

 poisonous Fangs of Serpents. 



Vol. Llll. A Plate illustrative"" of Dr. Ure's Experiments on Caloric, 

 ., Mr/ Luckcock's Paper on the Atomic Philosophy, and Mr, Bolto.s's 

 on the purification of Coal Gas. — A Plate representing Mr. Rennie's 

 Apparatus employed in his Experiments on the Strength of Materials; 

 and the Marquij Ridolphi's Improvement ■ on the Gas Blow-pipe. — A 

 Plate illustrative of Mr. Meikle's Paper on Calorific Radiation ; Mr. 

 Lowe's on the Purification of Coal Gas; and Mr. Hughes's on asccr- 

 taining Distances. — A Plate illustrative of Dr. Olinthus Gregory's 

 Paper on the different Rates of Pennington's Astronomical Clock at the 

 Island of Balta, and at Woolwich Common, 



Vol. LIV. A Plate illustrative of the Menai Bridge. — A Plate illus- 

 trative of Mr. Lowe's Description of a Mercurial Pendulum. — A Plate 

 illustrative of Mr. Hare's Calorimotor, a new Galvanic Instrument.— A 

 Plate illustrative of Captain Sabine's Paper on Irregularities observed ia 

 the Direetion of the Compass Needles of the Isabella and Alexander iii 

 the late Voyage of Discovery ; and Mr. Scoresby's Anom;ily in the Va- 

 nation of the Magnetic Needle as observed on Ship-board. 



Vd. LV. A Plato exhibiUn^ Sketch of the Comet's Path of Jt<ly ISI?, 



