traverse the mica slate of Antrim,
559.

Guérin (M.) on potatoe starch, 586.
Hall (Dr. M.), description of a thermo-
meter for determining minute differ-
ences of temperature, 57.
Halley, remarks on, 144, 214, 220, 225.
Halley's comet, 148, 173.

Hamilton (Sir W. R.), Royal Medal
awarded by the Royal Society to, 150;
theorem respecting algebraic elimina-
tion, 538.

Handyside (Dr.) on the offices of lac-
teals, lymphatics, and veins in the
function of absorption, 58.
Hare's (Dr.) voltaic trough, 116, 119.
Harris (W. S.) on the attractive and re-
pulsive forces of magnets, 349.
Heat:-radiant, 23, 109, 186, 190,
246, 425; undulatory theory of, 246;
its circular polarization by total re-
flexion, 246; repulsive power of, 189.
Heineken (N. S.) on the aurora bo-
realis of Nov. 18, 1835, 439.
Henwood (W. J.) on the steam engines
of Cornwall, 20, 591.
Herrerite, 261.

Herschel (Sir J. F. W.), meteorological
observations, 78; on scientific and ge-
neral education, 432.
Hodgkinson (E.) on impact and colli-
sion, 65.

Hope (Dr.), address on presenting the
Keith prize to Prof. Forbes, 424.
Hopkins (W.) on physical geology, 227,
272, 357.

Horner (L.) on a substance resembling
shell, 545.

Horner (W. G.) on congeneric surd
equations, 43.

Hudson (Dr.) on an error in Dr. Ap-
john's formula for inferring the spe-
cific heats of dry gases, 21; on the
transmission of calorific rays, 109.
Hydriodic acid, a test for the vegetable
alkalies, 191.

Hydrochloric acid, its action on certain
sulphates, 353.

Hydrometer, Prof. Stevelly's, 69.
Impact and collision, on, 65.
Inglis (Dr.) on iodine, 12, 191.
Insects, compound eyes of, 202.

Integral calculus, 515, 549.
Interpolation, M. Cauchy on, 459.
Iodine:-essay on, 12, 191; its conduct-
ing power for electricity, 130, 400.
Iron, on protecting it from the action of
salt-water, 128.

Jones (T. W.) on the retina and pigment
of the eye of the Sepia Loligo, 1.

Johnson (E. J.), magnetic experiments

on an iron steam-vessel, 547.
Kane (Dr.) on the action of hydro-
chloric acid on certain sulphates, 353;
on the action of ammonia on the
chlorides and oxides of mercury, 495.
Kater (Capt.), list of the papers contri-
buted by him to the Philosophical
Transactions, 151.

Keith (Rev. P.) on the conditions of
germination, 491.

Kelland (Mr.) on the dispersion of
light, 429.

Kennedy (Dr.) on purulent ophthalmia,

65.

Laplace's (M.) capillary theory, on, 89;
coefficients, 474.

Lardner (Dr.) on the theory of gradients
in railways, 51.

Lead, cause of its presence in English
chemical preparations, 267.

Lecount (Lieut.), reply to Mr. Barlow,
439, 591.

Leigh (J.) on a patch of red and varie-
gated marls, 571.

Lens, crystalline, of animals, 193, 416.
Liebeg (M.) on aldehyd discovered by,

83.

Light-apparatus for illustrating the
polarization of, 70; its action upon
plants, 415; undulatory theory of,
7, 24, 113, 204, 247, 270, 305, 413,
429, 500.
Lighthouses, experiments on Drum-
mond's light for, 238.
Lime, hydraulic, 591.

Linnæan Society, 75, 255, 345, 423,
580.

Liverpool tides, on the, 147, 418, 547.
Logarithms of unity, on, 281.
Lubbock (J. W.) on tide observations
made at Liverpool, 418.

Lunar observations, on reducing, 373.
Lyell (C.), address at anniversary of
the Geological Society, Feb. 19, 1836,
310; on the occurrence of fossil ver-
tebræ of fish in the loess of the Rhine,
557.

MacCullagh (J.) on the laws of re-
flexion from crystallized surfaces, 103.
M'Donnell (Dr.) on the differential
pulse, 63.

Magnetic action, 55, 108, 180, 242, 349.
experiments tried on board an

iron steam-vessel, 547.

349.

forces, on the, 55, 108, 242,

relations of the metals, 179.
Magnetism, researches in, 455; ter-
restrial, 418.

Magnets, attractive and repulsive forces
of, 349.

Manganese, sesquisulphate of, 173.
Marcet (M.) on the action of mush-
rooms on atmospheric air, 82.
Mathematics, 43, 281, 295, 393, 402,
515, 538, 549.

Melloni's (M.) theory of the transmis-
sion of calorific rays, on, 23, 109,
186, 190, 246.

Mercury, action of ammonia on the
chlorides and oxides of, 495.
Metals, magnetic relations of the,

179.

Meteorology, 67, 78, 187, 236, 263,
351, 447, 592; table for Nov. 88; for
Dec. 176; for Jan. 264; for Feb. 352;
for Mar. 448; for Apr. 593.
Microscope, achromatic, 70.
Miller (Prof.) on the measurement of
the axes of optical elasticity of certain
crystals, 431.
Mineral veins, 229.

Mineralogy, on symbolic notation as
applied to, 101; Breithaupt's Mine-
ralogy, 173; on thulite and strömite,
169; culebrite, 261; Riolite and Her-
rerite, 261.

Mirage, as seen in Cornwall, 169.
Mitscherlich (E.) on nitro-benzide and
sulpho-benzide, 257; on the forma-
tion of æther, 258.

Mudge (Capt.) on the ossiferous cavern
of Yealm Bridge, 579.
Murchison (R. I.) on the discovery of
fossil fishes in the new red sandstone
of Tyrone, 72; on the geological
structure of Pembrokeshire, 561; on
the gravel and alluvia of South Wales
and Siluria, 566.

Murray (Sir J.) on the influence of ar-

tificial rarefaction in some diseases,
and the effects of its condensation in
others, 62.
Mushrooms, their action on atmospheric
air, 82.

Nephrodium rigidum, 255.

Newton and Flamsteed, 139, 211, 218,
225.

Newton's Principia, inquiry relative to

Dr. Pemberton's translation of, 441;
theory of natural colours, on, 468.
Nickel, separation of zinc from, 80.
Nitrate of carbohydrogen, 85.
Nitro-benzide and sulpho-benzide, 257.
Nitrogen, iodide of, 12, 13.

Nixon (J.), table of observed terrestrial
refractions, 479.

Notation, symbolic, as applied to mine-
ralogy, 101.

Oil, on the phænomena of drops of
floating on water, 288.
Ophthalmia, purulent, 65.
Opium, new alkali in, 444.
Optical experiment, 168; optical struc-
ture of the crystalline lenses of ani-
mals, 193.

Organic remains, 30, 32, 561, 576, 579.
Osborne (Dr.) on the effects of cold on
the human body, and on a mode of
measuring refrigeration, 59.
Oxacids, action of on pyroxylic spirit, 85.
Oxide of chromium, crystallized, 175.
Parish (W.) on the effects of the earth-

quake waves on the coasts of the Pa-
cific, 181.
Pemberton's (Dr.) translation of New-
ton's Principia, inquiry relative to,

441.
Pembrokeshire, geology of, 561, 567.
Persian Gulf, on the, 506.

Phillips (R) on the action of oxacids on
pyroxylic spirit, 85.
Phloridzine, 444.

Pingel (Dr.) on the gradual sinking of
the west coast of Greenland, 73.
Pinus, descriptions of two species of,
255.

Poisson's (M.) capillary theory, on, 89.
Polariscope, simple, 70.
Potatoe starch, 586.

Powell (Prof.), remarks on M. Melloni's
paper on the transmission of calorifie
rays, 23; on M. Cauchy's theory of
the dispersion of light, 24, 204, 305;
on the theory of dispersion, 112;
note on the transmission of radiant
heat, 186; on the dispersion of light,
413.

Pratt (J. H.) on the proposition that a

function of and can be developed
in only one series of Laplace's coeffi-
cients, 474.

Prawn, on the growth of the, 421.
Precipitate, white, 498.

Pritchard (A.), apparatus for illustrat-
ing the polarization of light, 70.
Psychometer, or measurer of refrigera-
tion, 61.

Pulse, on the differential, 63.

Pyroxylic spirit, action of oxacids on, 85.
Quinine, iodide of, 191.

Radiant heat, 23, 109, 186,190, 246, 425.
Railways, theory of gradients in, 51,
97, 243; on vibration of, 70; re-
marks on iron rails, 291, 439.
Rainbow, explanation of, on the doc-
trine of interference, 78.
Rain-gauge, self-registering, 69.
Reflexion, 103, 246.

Refraction, 103, 479.

Refrigeration, mode of measuring, 59. Resistance, on the solid of least, 66. Retina of the eye of the common calamary, 1.

Reviews: Whewell's Newton and Flamsteed, 139; Young's Theory and Solution of Algebraic Equations, 402; Wiegmann's Herpetologia Mexicana, 410; Cooper's Flora Metropolitana, 411; Samouelle's Entomologist's Useful Compendium, 412; Webster's Principles of Hydrostatics, and Theory of the Equilibrium and Motion of Fluids, 544.

Richardson (W.) on selenite in the sands of the plastic clay near Herne Bay,

558.

Rigaud (Prof.) on a note in the Quarterly Review respecting Mr. Whewell, 218; on Newton, Whiston, Halley, and Flamsteed, 220; on the aurora borealis of Nov. 18, 1835, 350; inquiry relative to Dr. Pemberton's translation of Newton's Principia,441. Riley (Dr.) on various fossil remains of Saurian animals, 577. Riolite, 261.

Ritchie (Dr.) on magnetic action, 55,

242; researches in electricity and magnetism, 455.

Roberts (Mr.) on a machine which renders objects visible while revolving 200,000 times in a minute, 71. Robinson (Dr.) on the aurora of Nov. 18, 1835, 236.

Rose (C. B.) on the geology of West
Norfolk, 28.

Royal Institution, 348.
Royal Society, 147, 412, 545.
Royal Society of Edinburgh, 424.
Rudberg's (M.) undulatory theory of
dispersion, 28, 113, 210.

Rumker (C.), new method of reducing lunar observations, 373.

Russell (J. S.) on the solid of least resistance, 66.

Schweitzer (G.) on the cause of the presence of lead in English chemical preparations, 267.

Sculpture, production of busts, &c. by machinery, 70.

Sepia Loligo, on the eye of the, 1. Shell, on a substance resembling, 545. Sherard (W.), the founder of the Professorship of Botany at Oxford, 424. Ships, new form for the construction of,

66.

Silver, German, analysis of, 80.

Smith (J. D.), analysis of German sil

ver, and the separation of zinc from nickel, 80; on the separation of barytes and strontia, 259; on the composition of carbonate of zinc, 261. Snow, red, 80.

Soda, chloride of, its use in fever, 64. Solar eclipse of May 15, 293, 589, 590. Solar spectrum, lines of the, 384. Solid of least resistance, on the, 66. Solly (E. jun.) on the conducting power of iodine, bromine, and chlorine for electricity, 130, 400.

Sowerby (J. de C.) on the habits of the long-eared bat, 265.

Specific heats of dry gases, error in Dr. Apjohn's formula for inferring, 21. Squire (T.) on the solar eclipse of May 15, 293.

Starch, potatoe, 586.

Steam-engines:-improvements in, 71; of Cornwall, 20,136; rotatory, 20,136. Steam-vessel, iron, magnetic experiments on, 547.

Stevelly (Prof.), description of a selfregistering barometer, 67.

Strigisan, a variety of wavellite, 173.
Strömite and thulite, 169.

Strontia and barytes, separation of, 259. Sturgeon (W.), description of the aurora borealis of Nov. 18, 134.

Stutchbury (S.) on various fossil remains of Saurian animals, 577. Suberic acid, 443.

Sulphate of copper, action of hydrochloric acid on, 353.

Sulpho-benzide and nitro-benzide, 257. Sulphur, vaporization of, 189.

Sykes (Col.) on the caves of Ballybunian,

574.

Symbolic notation, on, 101. Talbot (H. F.) on the repulsive power of heat, 189; on the integral calculus,

549.

Taylor (J.) on the duty of steamengines in Cornwall, 67; on rotatory steam-engines, 136. Tellurium, properties of, 84. Temperature, thermometer for deter

mining minute differences of, 57. Thebaia, a new alkali in opium, 444. Thermal springs, temperature of, 551. Thermometer:-for determining minute

differences of temperature, 57; fallacy of determining climate by the, 61; for measuring refrigeration, 61; verification of, 552.

Thompson (J.V.) on the metamorphoses in the Macroura, 421. Thomson (Dr.) on sesquisulphate of manganese, 173.

Thulite and strömite, 169.

Tides, at Liverpool, 147, 418, 547; remarks on tides, 430. Tovey (J.) on the relation between the velocity and length of a wave of light, 7, 270, 500.

Undulatory theory, 7, 24, 113, 204, 247, 270, 305, 413, 429, 500. Valparaiso, effects produced by the earthquake of Nov. 1822 at, 159. Volcanos, on the chemical theory of, 250; eruption of Coseguina, 414. Voltaic battery, improved, 114; practical results of the, 121; voltaic combinations, 421; Hare's voltaic trough, 116, 119.

Wagner (R.) on the compound eyes of insects, 202.

Walford (E. B.), subsidiary hypothesis

to the electro-chemical theory of Sir H. Davy, 170. Wavellite, 173.

Webster's Principles of Hydrostatics, and Theory of the Equilibrium and Motion of Fluids, 544.

Whewell, (Rev. W.), notice of his pamphlet "Newton and Flamsteed," 139; reply to the Quarterly Review, 211;

Woolhouse (W. S. B.) on the theory of gradients on railways, 243; on the theory of vanishing fractions, 393. Yarrell (W.) on a species of pipe-fish,

347; on an insect destructive to turnips, 347.

Young (Prof.) on Mr. Woolhouse's theory of vanishing fractions, 295, 515; theory and solution of algebraic equations, 402.

Zinc, its separation from nickel, 80; composition of carbonate of, 259; plates, amalgamation of, 585. Zoological Society, 161, 346.