: * ENGRAVINGS. ‘ 
® Vol. LI. A Plate illustrative of Mr. Upincron’s Electrical In- 
easer for the unerring Manifestation of small Portions of the Electric 
uid.—A Plate :llustrative of Mrs. Isserson’s Paper onthe Fructificae 
Mion of Plants.—A Plate illustrative of the Rev. Joun Micuetv’s Theory 
ff the Formation of the Earth—A Plate illustrative of Capt. Kater’s 
tticle on the Pendulum ; and New Apparatus for impregnating Liquids 
ith Gases,—A Plate illustrative of Sir H. Davy’s Apparatus for Volae 
iilization of Phosphorus, and Mr. Smitu’s Essay on the Structure of the 
yissnous Fangs of Serpents.  - ‘i Peat 
Wol..LIII. A Plate illustrative of Dr. Ure’s Experiments on Caloric, 
fr. Lucxcocx’s Paper on the Atomic Philosophy, and Mr. Botton’s 
athe Purification of Coal Gas.—A Plate representing Mr. Renwnin’s 
Apparatus employed in his, Experiments.on the Strength of Materials; 
gimd the Marquis Ripovexi’s Improvement on the Gas Blow-pipe—A 
late illustrative of Mr. Mrixxe’s Paper on Calorific Radiation; Mr. 
owe’s on the Purification of Coal Gas; and Mr. Hucues’s on ascer- 
ining Distances. — A Plate illustrative of Dr. OLinrHus Grecory’s 
per on the different Rates of Penyincton’s Astronomical Clock at the 
land of Balta, andat Woolwich Common, : 
Vol. LIV. A Plate illustrative of the Menar Baipce.—A Pilate illus- 
ative of Mr. Lowi’s Description of a Mercurial Péndulum.—A Plate 
uustrative of Mr. Hare’s Calorimotor, a new Galvanic Instrument,—A 
te illustrative of Captain Sasine’s Paper on Irregularities observed.in 
@ Direction of the Compass Needles of the Isabella and Alexander in * 
Tate Voyage of Discovery; and Mr. Scoressy’s Anomaly in the Va- 
tion 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- 
mber next.—A Plate illustrative of Mr. Lane’s Instrument for 
ring Fruit; Mr. Younc’s Mode of. preparing Opium from the 
er somniferum; and of Captain Forman’s Essay on a Property in 
ght which hitherto has been unobserved by Philosophers.—A Plate de- 
iptive of Mr. Curuzerr’s improved Hydro-pneumatic Apparatus, &c. 
A Plate illustrative of Capt. Forman’s Essay on the Reflection, Refrac- 
a, and Inflection of Light, &c.; and Mr. Crarves Boxnycastie’s 
mmunicacion respecting the Influence of Masses of Iron on the Mari- 
*s Compass. 2 #3 ; , , 
Jol. LVI. A Pilate illustrative of Mrs. Ieserson’s Paper on the Phy- 
logy of Botany.—A Plate illustrative of Mr. Havt’s Percussion Gun- 
ck; of Dr. Kircuiner’s Pancratic Eye-Tube; and of Mr. Parw’s 
poring Blocks. —A Plate exhibiting Sections, &c. of Mr. Mavam’s im- 
wed Gas-Meter.—A Plate exhibiting the Discoveries made by Capt. 
gry in the Polar Sea, ‘ 
You. LVII. A Plate illustrative of Mess. GExstep and Amrere’s 
ctro-magnetic Experiments, and Mr. Perxins’s Paper on the Com. 
ssibility of Water.—A Plate illustrative of Mr. Jamirson’s Marine 
mometer Case, and Mr. Jennincs’s Mercurial Log-Glass.—A Plate 
strative of Dr. Hare’s new Modification of Galvanic Apparatus,—-A 
te representing a Double Canal Lock, originally proposed for the Re+ 
at's Canal, by Mr. R. H, Gower; and a Modification of Electro-Mag- 
tic Apparatus, by Mr. Tatum. ; ! 
Vol. LVIII. A Plate illustrative of Mr. Geo, Innrs’s Calculations of 
> Annular Eclipse oftthe Sun, which will happen on thel 5th of Nay 
1836.—A Plate descriptive. of the Hydrostatic Balances of Isaran 
xens and Dr, Coates.—A Plate illustrative of “ An Introduction to 
Knowledge of Funguses.” . 
