ENGRAVINGS. 

 &c. ; ako a New Reflecting Goniometer. — A Plate to illustrate Ghevalier 

 Baader's Method of communicating Rotatory Motion; Lieut. Shulq,- 

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

 dification of Nooth's Apparatus, &c. 



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



on Flame, and Sir George Cayley'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 in-' 

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

 for Sublimation of Iodine — Model of a Safety Furnace by Mr. ■^akewell 

 —Apparatus 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 of Mr. Adamson.tt-A Plate illustrative of Mrs. 

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

 trate Mr. Dickinson's new System of Beaconing. 



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

 Probability of Meteorolites being projected ' from the Moon. — TWo 

 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 ot Mrs. Ibbetson's Pa- 

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



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

 creaser for the unerring Manifestation of small Portions of the Electric 

 Fluid. — A Plate 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 of the Earth. — A Plate illustrative of Capt. K4ter'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 of Phosphorus, and Mr. Smith's Essay on the Structure of the 

 poisonous Fangs of Serpents. 



Vol. LIII. 'A Plate illustrative of Dr. Ure's Experiments on Calorfc^. 

 Mr. Luckcock's Paper on the Atomic Philosophy, and Mr. Bolton'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 Marquis Ridolphi'j 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 ascer- 

 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 in 

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

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

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

 -Vol. LV. A Plate exhibiting Sketch of the Comet's Path of July 1819. 

 ••—A Plate illustrative of the Annular Eclipse of the Sun on the 7th of 

 "September next. — ^A Plate illustrative of Mr. Land's Instrument for 

 gathering Fiuitj Mr. Young's Mode of preparing Opium from the 

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

 Light which hitherto has been unobserved by Philosophers. — A Plate de- 

 scriptive of Mr.-CuTHB^RT's improved Hydro-pneumatic Apparatus, &c. 



