ENGRAVINGS. 



Vol. L. A Pl:ite to illustrate Sir Humphry Davy's new Research« 

 on Flame, and Sir George CAyLEv's Paper on Aerial Navip;ation.-*- 

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

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

 tended to run between London and Exeter. — RepreseiUatian of Apparatus 

 forSublimationof Iodine— Model of a Safety Furnace by Mr. Bakewell 

 — Aoparatus for consuming Fire-damp in the Mine — and Apparatus for 

 re-lighting the Miners' Davy. — A Plate illustrative of the New Patent 

 Horizontal Water-Wheel pf Mr. Adamson. — A Plate illustrative of Mrs, 

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

 trate Mr. Dickinson's, new System of Beaconing. 



Vol. LI. A Plate illustraiive of Mr. Capel Lofft's Paper on the 

 Probability of Meteorolites being projected from the Moon.--rTwo 

 Plates : one, of Mr. H. Tritton's Improved Apparatus for Distillation ; 

 ' and another, of the Figures in Bradley's Gardening illustrative of the Ar- 

 ticle on the Kaleidoscope. — A Plate illustrative of Mrs. Ibbetson's Pa- 

 per on the Anatomy of Ve:;etables; and Mi.Tredgold's on Revetements. 



Vol. Ltl. A Plate illustra'iye of Mr. Upington's Electrical In- 

 creaser for t!ie unerring Manifestation of small'Portions of the Electric 

 Fluid. — A Phj.te illustrative of Mrs. Ibbetson's Paper on the Fructifica- 

 tion of Plants. — A Plate illustrative of the Rev. John Michell's Theory 

 of the Formation oftheF.arth. — A Plate illustrative of Capt. Kater's 

 Article on the Pendulum ; and New Apparatus for impregnating Liquids 

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

 tilization Oi Phosphorus, and Mr. Smith's Essay on the Structure of tne 

 .poisonous Fa'igs of Sernints. 



Voh LIII. A Plate iiluifaiive of Dr. Ure's Experiments on Caloric, 

 Mr. Luckcock's Par-;;ron the Atomic Philosophy, and Mr. Bolton s 

 on the Puriacation cf Ca-A Gas.— A Plate representing Mr. RENNiufs 

 Apparatu"; e^nployed in his Expeiiments on the Strength of Materials; 

 •and tlie Mar;ji IS RidolphTs Improven^ent on tlie Gas Blow-pipe.— A 

 Plate illustr.j've of Mr. Meikle's Paper on Calorific Radiation; Mr. 

 Lowe's on t'^^e Purification of Coal Gas; and Mr. Hughes's on ascer- 

 taining Distances. — A Plate illustradve of Dr. Olintkus Gregory's 

 Paper on the d'.TcTC-nt Rates of Pennington's Astronomical Clock at the 

 Island ofBalta, ardat Woolwich Common. 



• Vol, LIV. A Plate illustrative of the Mlnai Bridge. — A Plate illus- 

 trative of Mr. Lov/t:'s Description of a Mercurial Pendulum. — A Plate 

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

 Piaie illustrative of Captain Sabine's Paper on Irregularities observed in 

 the Direction of the Compass Needles of the Isabella and Alexander in 

 the late Voyage cf Discovery; and Mr, Scoresby's Anomaly in the Va- 

 riation of the Magnetic Needle ^s observed on bhip-board, i 



Vol. I.V. A Plate exhibiting Sketch of ihe Ccr.net's Path of July I8I9. 

 — A Plate ilkisirative of the Annular Eclipse of the Sun on the 7th of 

 September next. — A Plate illustrative of Mr. Lani's Instrument for 

 gathering Fruit; Mr. Young's Mode of preparuig Opium iVom the 

 Papaver somniftrrum ; and of Captain Forman's Essay on a Property in 

 Liglit which hitheitii has been unobserved by Philosophers. — A Plate de- 

 scriptiveof Mr. Cuthbirt's improved Hydro-pneumatic Apparatus, &c. 

 ^-A Plate illustrative ol Capt. Forman's Eisay ou the Rcfl'"(.ti( n. Refrac- 

 tion, and Inflection of Ligln, &c. ; and Mr. Charles Bonnvcastle's 

 Commmiicacion respecting the Influence of Masses of Iron on the Mari- 

 ner's Compass. 



• Vol. LVI. A Plate illustrative of Mr.^ Ibhetsos's Paper on the Phy- 

 .siology of Botany. — A Plate illustrative of Mr. Hall's Percussion Gun- 

 Lock; of. Dr. Kitchiner's Panciatic Eye-Tube j and oi Mr. Pi^tK'f 

 Mooring Blocks, 



