RIG Pop 5 oa _ “ENGRAVINGS. 
VolLi. A Plate illustrative of Mr. Urincfon’s Electrical In- 
-ereaser for the unerring Manifestation of small Portions of the Electric 
Fluid.—A Plate ‘Illustrative of Mrs. Inperson’s Paper onthe Fructifiea- 
stion of Plants.—A Plate illustrative of the Rev, Joun Micuenw’s Theory 
‘of the Formation of the Earth.—A Plate illustrative of Capt. Katerr’s 
‘Article on the Pendulum ; and New Apparatus for impreenating Liquids 
with Gases,—A Plate illustrative of Sir H. Davy’s Apparatus for Vola- 
ization of Phosphorus, and Mr. Smitn’s Essay on the Structure of the 
poisonous Fangs ot Serpents.» ‘ 
© Vol. LIII. A Plate illustrative of Dr. Urt’s Experiments on Caloric, 
“Mr. Lucxcocx’s Paper on the Atomic Philosophy, and’ Mr, Bouron’s 
oa the Purification of Coal Gas.—A Plate representing Mr. Rennie’s 
- Apparatus employed in his Experiments on the Strength of Materials; 
vand the Marquis Ripotpui’s Improvement on the Gas Blow-pipe—-A 
*Plate illustrative of Mr. Meixis’s Paper on Calorific Radiation; Mr, 
ie owe’s on the Purification of Coal Gas; and Mr. Hueues’s on ascer- 
‘taining Distances. — A Plate illustrative of Dr. Ovinruus Grecory’s 
_ Paper on the different Rates of Penyincton’s Astronomical Clock at the 
‘Jsland of Balta, andat Woolwich Common. ~ ; 
* Vol. LIV. A Plate illustrative of the Mznar Betpce,—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 Sasink’s Paper on Irregularities observed in. 
the Direction of the Compass Needles of the Isabella and Alexander in 
the late Voyage af Discovery ; and Mr. Scoresny’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 Puth of July 1819. 
=A Plate illustrative of the Annular Eclipse of the Sun onthe 7th of 
) September’ next.—A Plate illustrative of Mr. Lane’s Instrument for 
|) gathering Fruit; Mr. Younc’s Mode of preparing Opium from the 
| Papaver somniferum; and-of Captain Forman’s Essay on a Property in 
_ Light which hitherto has been unobserved by Philosophers.—A Plate de- 
tiveof Mr. Curnsert’s improved Hydro-pneumatic Apparatus, &c. 
/—A Plate illustrative of Capt. Forman’s Essay on the Reflection, Refrac- 
‘tion, and Inflection of Light, &c.; and Mr. Cuarres Bonnycastir’s 
~ Communication respecting the Influence of Masses of Iron on the Mari-. 
-ner’s Compass. 
ayo LVI. A Plate illustrative of Mrs. Innerson’s Paper on the Phy- 
siology of Botany.—A Plate illustrative of Mr. Hatw’s Percussion Gun- — 
Lock; of Dr. Kircutner’s Pancratic Eye-Tube; and of Mr. Parx’s 
Mooring Blocks.—-A Plate exhibiting Sections, &c. of Mr. Matam’s im- 
proved Gas-Meter.—A Plate exhibiting the Discoveries made by Capt. 
Parry in the Polar Sea. ; 
Vv yt. LVI. A Plate illustrative of Mess. CExsrep and Amprrr’s 
Electro-magnetic Experiments, ‘and Mr. Perkins’s Paper on the Com. 
pressibiliry of Water.—A Plate illustrative of Mr. Jamreson’s Marine 
Lhermometer Case, and Mr. Jennincs’s Mercurial Log-Glass.—A Plate 
lustrative of Dr. Hare’s new Modification of Galvanic Apparatus,—A 
Plate representing a Double Canal Lock, originally proposed for the Re- 
pent’s Canal, by Mr. R. H. Gower ; and a Modification of Electro-Ma g- 
netic Apparatus, by Mr. Tarum, 
» Vol. LVILI. A Plate illustrative of Mr. Gro, Innes’s Calculations of 
the Annular Eclipse of the Sun, which will happen-on the1di of May 
886 | ; 
