Darwin (G. H.) on the precession of a
viscous spheroid, and on the remote
history of the earth, 184.

problems connected with the tides
of a viscous spheroid, 194.
Davy medal awarded to L. P. Cailletet
and R. Pictet, 68.

Declination magnet, note on the inequa-
lities of its diurnal range, as recorded
at the Kew Observatory (Stewart),
241.

(magnetic), a comparison of the
variations of the diurnal range of, as
recorded at the observatories of Kew
and Trevandrum (Stewart and Mo-
risabro Hiraoka), 288.

Dewar (J.) and Liveing (G. D.) on the
reversal of the lines of metallic vapours:
No. IV, 352; No. V, 367; VI, 471.
on a direct-vision spectroscope,

Earth, on a method of using the balance
with great delicacy, and on its em-
ployment to determine the mean den-
sity of the (Poynting), 2.

"" on the remote history of the
(Darwin), 184.

Elder (H. M.) and Rodwell (G. F.) on

the effect of heat on the di-iodide of
mercury, HgI2, 284.

Electric currents, on certain means of
measuring and regulating (Siemens),
292.

discharge, note of an experiment on
the spectrum of the (Grove), 181.
Electrical constants, measurements of:
No. II. On the specific inductive capa-
cities of certain dielectrics: Part I
(Gordon), 155.

insulation in high vacua (Crookes),

347.
Electricity, influence of, on water-drops
(Rayleigh), 406.

and light, on an extension of the
phenomena discovered by Dr. Kerr
(Gordon), 346.

Electro-magnetic theory of the reflection
and refraction of light (Fitzgerald),
236.

Elements, discussion of the working hy-

pothesis that the so-called, are com-
pound bodies (Lockyer), 157.
Eocene Flora of Great Britain (Ettings-
hausen), 221.

Equations, machine for the solution of
simultaneous linear (Thomson), 111.
Ettingshausen (Baron), report on phyto-
paleontological investigations gene-
rally, and on those relating to the
Eocene Flora of Great Britain in par-
ticular, 221.

Explosions (colliery), influence of coal-
dust in: No. II, (Galloway), 410.

Fellows, deceased, 42; elected, 43;
number of, 69.

Financial statement, 70.

Fitzgerald (G. F.) on the electro-mag-
netic theory of the reflection and re-
fraction of light, 236.

Flora (Eocene) of Great Britain (Ettings-
hausen), 221.

Flow of water in uniform régime in
rivers and other open channels (Thom-
son), 114.

Fog, on dry (Frankland), 238.
Foreign members elected, 462.
Fossil plants of the coal-measures, orga-
nised (Williamson), 445.
Frankland (E.) on dry fog, 238.
Fries (E. M.), obituary notice, vii.
Fur of tongue, its nature, 484.

Galloway (W.), influence of coal-dust in
colliery explosions: No. II, 410.
Gas, on an extension of the dynamical
theory of (Reynolds), 304.

Gaseous state, on certain dimensional
properties of matter in the: Parts I, II
(Reynolds), 304.

Gases, absorption of, by charcoal: Part II
(Smith), 322.

experimental researches on thermal
transpiration of, through porous plates
(Reynolds), 304.

Geddes (P.), physiology and histology of
Convoluta Schultzii, 449.

Geological time, limestone as an index of
(Reade), 281.

Geology (Physical), notes on: No. V,
note in correction of an
(Haughton), 154.

error in

Glass fibre, on the torsional strain in
a, after release from twisting stress
(Hopkinson), 148.

Gordon (J. E. H.), measurements of
electrical constants: No. II. On the
specific inductive capacities of certain
dielectrics: Part I, 155.

on an extension of the phenomena
discovered by Dr. Kerr, and described
by him under the title of "A New
Relation between Electricity and
Light," 346.

Government fund of 4,000l., account of
the appropriations from, in 1878. 77.

Government grant of 1,000l., account of
the appropriation of, in 1878, 75.
Grove (Sir W. R.), note of an experi-
ment on the spectrum of the electric
discharge, 181.

Hannay (J. B.) on the microrheometer,
279.

Hartley (W. N.) and Huntington (A. K.),
researches on the absorption of the
ultra-violet rays of the spectrum by
organic substances, 233.
Haughton (Rev. S.), note in correction

of an error in his paper, "Notes on
Physical Geology, No. V," 154.
Heat, effect of, on the di-iodide of
mercury, HgI, (Rodwell and Elder),

284.

Hicks (J. B.), supplementary forces con-
cerned in abdominal circulation in
man, 489.

auxiliary forces concerned in the
circulation of the pregnant uterus in
woman, 494.

Hogarth (J.) and Mills (E. J.), re-
searches on chemical equivalence :
Part II. Hydric chloride and sul-
phate, 270.

researches on lactin, 273.
Hooker (Sir J. D.), President's address,
43; resignation, 63.

Hopkinson (J.) on the torsional strain

which remains in a glass fibre after
release from twisting stress, 148.
Huntington (A. K.) and Hartley (W. N.),

researches on the absorption of the
ultra-violet rays of the spectrum by
organic substances, 233.
Huxley (T. H.), characters of the pelvis in
mammalia and conclusions respecting
the origin of mammals, 395.
Hyaline cartilage, on, and deceptive ap-
pearances produced by reagents, as
observed in the examination of a carti-
laginous tumour of the lower jaw
(Thin), 257.

Hydric chloride and sulphate, researches
on chemical equivalence: Part II
(Mills and Hogarth), 270.

Induction-currents, on the effects of
strong, upon the structure of the
spinal cord (Ord), 265.

Infusions (organic), note on the influ-
ence exercised by light on (Tyndall),

212.

Jackson (Dr. J. H.), admitted, 1.
Japan, magic mirror of: Part I (Ayr-
ton and Perry), 127.

Kerr (Dr.) on an extension of the pheno-
mena discovered by (Gordon), 346.

VOL. XXVIII.

Kew committee, report of the, 80.
Kew observatory, magnetic observations
made at, 1877-78, 89.

---- note on the inequalities of
the diurnal range of the declination
magnet as recorded at the (Stewart),
241.

Kew and Trevandrum observatories, a
comparison of the variations of the
diurnal range of magnetic declination
as recorded at (Stewart and Morisabro
Hiraoka), 288.

Lacertilia, on the structure and develop-
ment of the skull in the: Part I. On
the skull of common lizards (Parker),

214.

Lactin, researches on (Mills and Ho-
garth), 273.

Light, electromagnetic theory of the
reflection and refraction of (Fitz-
gerald), 236.

influence exercised by, on organic
infusions (Tyndall), 212.

influence of, upon protoplasm
(Downes and Blunt), 199.

Limestone as an index of geological time
(Reade), 281.

Lindsay (Lord), admitted, 102.

Linear equations, machine for the solu-

tion of simultaneous (Thomson), 111.
Lines of metallic vapours, on the re-
versal of the (Liveing and Dewar):
No. IV, 352; No. V, 367.

of molecular pressure, on the illumi-
nation of (Crookes), 103.
Liveing (G. D.) on the unknown chro-
mospheric substance of Young, 475.

and Dewar (J.) on the reversal
of the lines of metallic vapours:
No. IV, 352; No. V, 367; No. VI,
471.
on a direct vision spectro-

scope, 482.
Lizards, on the skull of the common
(Parker), 214.

Lockyer (J. N.), researches in spectrum
analysis in connexion with the spec-
trum of the sun, 157.

preliminary note on the sub-
stances which produce the chromo-
spheric lines, 283.

some spectral phenomena observed
in the arc produced by a Siemens'
machine, 425.

-, on some phenomena attending the
reversal of lines, 425.

discussion of "Young's List of
Chromospheric Lines:" No. I, 432.
Locomotor system of Medusa, conclud-
ing observations on the (Romanes),
266.

2 R

McLeod (H.) and Clarke (G. S.) on the
determination of the rate of vibration
of tuning forks, 291.

Machine for the solution of simultaneous
linear equations (Thomson), 111.
Magic mirror of Japan: Part I (Ayrton
and Perry), 127.
Magnet (declination), on the inequalities
of the diurnal range, as recorded at
the Kew observatory (Stewart), 241.
Magnetic declination, comparison of the
variations of the diurnal range, as re-
corded at the observatories of Kew
and Trevandrum (Stewart and Moris-
abro Hiraoka), 288.

observations made at Kew observa-
tory, 89.

Mammalia, characters of the pelvis
(Huxley), 395.

Mammals, on the origin of (Huxley),
395.

Marcet (W.), inquiry into the functions
of respiration at various altitudes in
Teneriffe, 498.

Marshall (A. M.), note on the develop-
ment of the olfactory nerve and olfac
tory organ of vetebrates, 324.
Matter, on certain dimensional proper-

ties of, in the gaseous state: Parts
I, II (Reynolds), 304.

Matthey (G.), on the preparation of
the group of metals known as the
platinum series, 464.

Medals, presentation of the, 63.
Medusa, concluding observations on the

locomotor system of (Romanes), 266.
Mercury, di-iodide of, Hgle, on the
effect of heat on the (Rodwell and
Elder), 284.

Metallic reflexion, some experiments
on (Conroy), 242.

vapours, reversal of their lines
(Liveing and Dewar): No. IV, 352;
No. V, 367; No. VI, 471.
Microrheometer, on the (Hannay),

279.

,

Mills (E. J.) and Hogarth (J.), researches
on chemical equivalence: Part II.
Hydric chloride and sulphate, 270.
researches on lactin, 273.
Mills (E. J.) and Walton (T. U.), re-
searches on chemical equivalence :
Part I. Sodic and potassic sulphates,
268.

Mirror (magic) of Japan: Part I
(Ayrton and Perry), 127.
Molecular physics in high vacua
(Crookes), 477.

pressure, on the illumination of
lines of, and the trajectory of mole-
cules (Crookes), 103.

Morisabro Hiraoka and Stewart (B.), a
comparison of the variations of the

physiology of sugar in relation to
the blood, 520.

Pelvis in mammalia, characters of (Hux-
ley), 395.

Perry (J.) and Ayrton (W. E.), magie
mirror of Japan: Part I, 127.

-, contact theory of voltaic ae-
tion: No. III, 421.
Physical geology, notes on: No. V, note
in correction of an error in (Haugh-
ton), 154.
Phyto- paleontological

investigations,
report on, generally, and on those re-
lating to the Eocene Flora of Great
Britain in particular (Ettingshausen),

221.

Platinum series, preparation of the group
of metals (Matthey), 464.

Poynting (J. H.) on a method of using
the balance with great delicacy, and
on its employment to determine the
mean density of the earth, 2.
Preece (W. H.) and Stroh (A.), studies
in acoustics: I. On the synthetic
examination of vowel sounds, 358.
Presents, lists of, 98, 228, 297, 372, 457,
528.

President's address, 43; resignation of
Sir J. D. Hooker, 63; election of W.
Spottiswoode, 69.

Protoplasm, on the influence of light
upon (Downes and Blunt), 199.

Quatrefages (J. L. A. de), elected, 461.
Quincke (G. H.), elected, 461.

Radiation, repulsion resulting from:
Part VI (Crookes), 35.

Rayleigh (Lord), influence of electricity
on colliding water-drops, 406.

Reade (T. M.), limestone as an index of
geological time, 281.

Reflexion (metallic), some experiments
on (Conroy), 242.

Repulsion resulting from radiation :
Part VI (Crookes), 35.

Respiration at various altitudes in Tene-
riffe (Marcet), 498.

Reversal of lines, phenomena attending
the (Lockyer), 428.

Reynolds (0.) on certain dimensionai
properties of matter in the gaseous
state: Parts I, II, 304.

Rivers, on the flow of water in uniform
régime in, and other open channels
(Thomson), 114.

Rodwell (G. F.) and Elder (H. M.) on
the effect of heat on the di-iodide of
mercury HgI2, 284.

Romanes (G. J.), concluding observa-
tions on the locomotor system of Me-
dusæ, 266.

Royal medal awarded to J. Allan Broun,
65; to Dr. A. Günther, 66.
Rumford medal awarded to A. Cornu,
67.

Smith (R. A.), absorption of gases by
charcoal: Part II. On a new series
of equivalents or molecules, 322.
Sodic and potassic sulphates, researches
on chemical equivalence: Part I:
(Mills and Walton), 268.

Spectral phenomena in the arc produced
by a Siemens' machine (Lockyer), 428.
Spectroscope, direct vision (Liveing and
Dewar), 482.

Spectrum analysis, researches in, in con-
nexion with the spectrum of the sun
(Lockyer), 157.

of the electric discharge, note on
an experiment on the (Grove), 181.

researches on the absorption of
the ultra-violet rays of the, by organic
substances (Hartley and Huntington),
233.

Spheroid (viscous), on the precession of
a, and on the remote history of the
earth (Darwin), 184.

problems connected with the
tides of a (Darwin), 194.

Spinal cord, on the effect of strong in-
duction currents upon the structure
of the (Ord), 265.

Spottiswoode (W.), elected President, 69.
Sprengel (Dr. P. H.), admitted, 113.
Stas (J. S.), elected, 462.

Stewart (B.), note on the inequalities of
the diurnal range of the declination
magnet as recorded at the Kew ob-
servatory, 241.

and Morisabro Hiraoka, a com-
parison of the variations of the diurnal
range of magnetic declination as re-
corded at the observatories of Kew
and Trevandrum, 288.

Strain (torsional) which remains in a

glass fibre after release from twisting
stress (Hopkinson), 148.

Stroh (A.) and Preece (W. H.), studies
in acoustics: I. On the synthetic ex-
amination of vowel sounds, 358.
Sugar (physiology of) in relation to blood
(Pavy), 520.

volumetric estimation of, by an
ammoniated cupric test, giving reduc-
tion without precipitation (Pavy), 260.
Sun, researches in spectrum analysis in
connexion with the spectrum of the
(Lockyer), 157.

Teneriffe, respiration at various altitudes
(Marcet), 498.

Thin (G.) on some points connected
with the anatomy of the skin, 251.

-, on hyaline cartilage and deceptive
appearances produced by reagents, as
observed in the examination of a car-
tilaginous tumour of the lower jaw,

257.

Thomson (J.) on the flow of water in

uniform régime in rivers and other
open channels, 114.

Thomson (Sir W.), on a machine for the
solution of simultaneous linear equa-
tions, 111.

Thuillier (Major-General H. E. L.),
admitted, 358.

Tides of a viscous spheroid, problems
connected with the (Darwin), 194.
Tongue, nature of the fur, 484.
Torsional strain which remains in a
glass fibre after release from twisting
stress (Hopkinson), 148.

Trajectory of molecules (Crookes), 103.
Trust funds, 72-74.

Tumour (cartilaginous) of the lower jaw,
examination of (Thin), 257.

Tuning forks, on the determination of
the rate of vibration of (McLeod and
Clarke), 291.

Turtle (green), on the development of
the skull and its nerves in the (Parker),
329.

Tyndall (J.), note on the influence ex-
ercised by light on organic infusions,

212.

Ultra-violet rays of the spectrum, re-
searches on the absorption of the, by
organic substances (Hartley and Hun-
tington), 233.

Uterus (pregnant), forces concerned in
the circulation (Hicks), 494.

Vacua (high), electrical insulation in
(Crookes), 347.

, molecular physics in (Crookes)

477.
Vertebrates, note on the development of
the olfactory nerve and olfactory organ
of (Marshall), 324.

Vibration of tuning forks, on the deter-
mination of the rate of (McLeod and
Clarke), 291.

Vice-Presidents appointed, 102.
Vines (S. H.) on the chemical compo-
sition of aleurone grains, 218.
Viscous spheroid, on the precession of a,
and on the remote history of the earth
(Darwin), 184.

Walton (T. U.) and Mills (E. J.), re-
searches on chemical equivalence :
Part I, sodic and potassic sulphates,
268.

Ward (J.), physiology of the nervous
system of the crayfish, 379.

Water, flow of, in uniform régime in
rivers and other open channels (Thom-
son), 114.

thermal conductivity of (Bottom-
ley), 462.

drops, influence of electricity on
colliding (Rayleigh), 406.
Williamson (W. C.), organization of the
fossil plants of the coal-measures :
Part X, 445.

Young's list of chromospheric lines dis-
cussed: No. I (Lockyer), 432.

chromospheric substance, note on
(Liveing and Dewar), 475.

Zootoca vivipara, skull of (Parker), 214.