• ENGRAVINGS. 

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

 Terrestrial Mac^netism ; a- nef/ Electro-atmospherical. Instrument ; and 

 Mr. Andrew Horn's Paper on Vision. — A Quarto Plate to illustrate 

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

 Solar Spots which appeared during the Year 1816 ; — raid Mr. Beva'n's 

 Improvexnent on the Sliding- Rule. — A Plate descriptive of Mr.EMMETr's 

 Instrument for the Measurement of the Moon's Distance from the Sun, 

 &c. ; aUo a New Reflecting Goniometer. — A Plate to illustrate Chevalier 

 Baader's Method of communicating Rotatory Motion ; Lieut, ShulDt 

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

 dification of Nooth's Apparatus, &c. 



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

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

 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 lodine^F—Model of a Safety Furnace by Mr. Bakewell 

 — 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. — A Plate illustrative of Mri. 

 Iebetson's Theory of the Physiology of Vegetable's. — 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 of Mrs. Iebetson's Pa- 

 per on the Anatomy of Vegetables ; and Mr,TRnDGOLD's on Revetem.ents. 



Vol. LII. A Plate illustrative of Mr. Upington's Electrical In^ 

 creaser foy the unerring Manifestatitm of small Portions of the Electric 

 fluid.— A Plate illustrative of Mrs. Iebetson's Paper on the Frjjciifica- 

 tJon of Plants. — A Plate illustrative of tlie K<iv. Joh n Michexl's Theory 

 of 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's Apparatusfur 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 Caloric, 

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

 n the Purification of Coal Gas. — A Plate representing Mr. Renhii 's 

 Apparatus employed in his Expeiiments on the Strength of Materials; 

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

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

 ' . b's on the Purification of Coal Gas; and Mr. Hughes's on as;er- 

 ing Distances. — A Plate illustrative of Dr, Olin inus GREcouy's 

 IT on the different Rates of Pi-nningion's Astronomical Clock at the 

 I ind ofBalta, and at Woolwich Common. 



Vol. LIV. A Plate illustrative of the Menas Bridge. — A Plate illus, 

 tr;itive of NJr. Lowl's Description of a M(Tcurial Pondulum. — A Plate 

 ill trative of Mr. Hare's Calorimotor, a new Galvanic Instrument! — A 

 ■c illustrative of Captain Sabine's Paper on Irregularities observed in 

 ih(- Direction of the Corripass Needles oP the Isabella and Alexander in 

 the late Voyage of Discovery; and Mr, Scoresuy's Anomaly in the Va- 

 ri 'ion ©f the Magnetic Needle as observed on Ship-board. 



\'(>\. LV. A Plate exhibiting Sketch of ihc Comer's P.itli of July 1819. 

 ^-.\ Plate illustrative of the vYnnular Eclipse of tiie Sun on the 7th of 

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

 leathering Fiuit; Mr. Young's Mode of prepanng Opium from the 

 %^ap(tver sotniii/truni; and (jI C.iiUain Fokman's l'2ss;iy on a Property in 



