■ ENGRAVINGS. 



Vol. LI. A Plate illustrative of Mr. Capel Lofft's Paper on llie 

 Probability of Meteorolites being projected from the Moon..i^Tvvo 

 Plates : one, of Mr. H. Tritton's Improved Appa;-atus for Distillation ; 

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

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

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



Vol. Llf. 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 Mich ell's Theory 

 pf the Formation of the Earth. — 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'? Apparatus for Vola- 

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

 poisonous Faiig-s of Serpents. 



Vol, LI II. A Plate illustrative of Dr. Ure's Experiments on Calor,ic 

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

 on the Purification of Coal Gas. — A Plate representing Mr. Re.vnie's 

 Apparatus employed in his E.'cperiments on the Strength of Materials; 

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

 Plate illustr;Uive 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. Oltnthus Gregory's 

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

 Island ofBalta, and at Wool\<»ich Common. 



V0I.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 Direction of the Compass Nee^Jes of the Isabella and Alexander in 

 the fete 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. 

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

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

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

 Papaver sornniferum; and of Captain For man's Essay on a Property in 

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

 scriptive of Mr. Cuthbert's improved Hydro-pneumatic Apparatus, &c. 

 r— A Plate illustrative of Capt. Forman's Essay on the Reflpction, Refrac- 

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

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

 ner's Compass. 



Vol. LVT. A Plate illustrative of Mrs, Ibbetson's Paper on the Phy. 

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

 Lock"; of Dr. Kitchinkr's Pancratic Eye-TuUe ; and of Mr. Park's 

 Mooring Blocks. — A 'Plate exhibiting Sections, &c. of Mr. Malam's im- 

 proved Gas-Meter. — A Plate exhibiting the Diseovcres made by Capt. 

 Parry in the Polar Sea, 



Vol. LVII. A Plate illustrative of Mess. CErsted .ind Ampere's 

 Electro-magnetic Experiments, and Mr. Perkins's Paper on the Com. 

 prcfisibility of Water. 



