- XCVI.

147

GOMPERTZ, BENJAMIN. The application of a method
of differences to the species of series whose
sums are obtained by Mr. LANDEN, by the help
of impossible quantities.

A sketch of an analysis and notation applicable
to the estimation of the value of life contin-
gencies.

GOODRICKE, JOHN. A series of observations on, and
a discovery of, the period of variation of light
of the bright star in the head of Medusa,
called Algol.

On the period of the changes of light in the star
Algol.

LXXV.

153

Observations on a new variable star.

A series of observations on, and a discovery of, the period of the variation of light of the star marked ♪ by BAYER, near the head of Cepheus. LXXVI. GORSUCH,* Rev. WILLIAM. Extract of the register of the parish of Holy Cross, from Michaelmas 1770 to Michaelmas 1780.

48

LXXII.

53

GRANVILLE, AUGUSTUS Bozzi, M. D. On a mal-conformation of the uterine system in women; and on some physiological conclusions to be derived from it.

A case of the human foetus found in the ovarium,
of the size it usually acquires at the end of the
fourth month.

GRAY, EDWARD WHITAKER, M. D. Observations on
the manner in which glass is charged and dis-
charged with the electric fluid.

Observations on the class of animals called by
LINNEUS amphibia; particularly on the means
of distinguishing those serpents which are ve-
nomous from those which are not so.

Account of an earthquake felt in various parts
of England, November 18, 1795, with some
observations thereon.

CVIII.

395

GREATOREX, THOMAS. Observations on the heights
of mountains in the North of England.
GREGOR, Rev. WILLIAM. Experiments on a mineral
substance formerly supposed to be zeolite, with
some remarks on two species of uran-glimmer. XCV.
On a native arseniate of lead.
GREGORY, Rev. EDWARD. An account of the disco-
very of a comet, with observations thereon. LXXXIII.
GREVILLE, Rt. Hon. CHARLes. On the corundum
stone from Asia.

331

XCIX.

195

50

LXXXVIII.403

An account of some stones said to have fallen
on the earth in France; and of a lump of na-
tive iron said to have fallen in India.

GRIFFITHS, J. Description of a rare species of worm
shells discovered at an island lying off the
north-west coast of the Island of Sumatra, in
the East Indies.

GROOMBRIDGE, STEPHEN. Observations on atmospherical refraction as it affects astronomical observations.

337

CX.

330

Some farther observations on the same subject. CIV.
Astronomical observations

HAIGHTON, JOHN, M. D. An experimental inquiry concerning the reproduction of the nerves.

An experimental inquiry on animal impregnation. LXXXVII. 159 HAMILTON, Rev. JAMES AUGUSTUS. Account of his

observations of the transit of Mercury over the
sun, November 12, 1782.

HAMILTON, Sir WILLIAM. An account of the earth-
quakes which happened in Italy, from Fe-
bruary to May, 1783.

Some particulars of the state of Mount Vesuvius
in 1786; with an account of a journey into
the province of Abruzzo, and a voyage to the
Island of Ponza.

An account of the eruption of Mount Vesuvius,
in 1794.

HASSENFRATZ, Monsieur.

Monsieur. On hepatic air.

HATCHETT, CHARLES. An analysis of the Carinthian molybdate of lead, with experiments on the molybdic acid; to which are added some experiments and observations on the decomposition of the sulphate of ammoniac.

An analysis of the earthy substance from New

LXXIII. 453

169

LXXVI.

365

LXXXV.

73

LXXVII. 305

LXXXVI. 285

South Wales called Sydneia, or terra Australis. LXXXVIII. 110

Analysis of the water of the mere of Diss.

567

Experiments and observations on shell and bone. LXXXIX. 315

Chemical experiments on zoophytes, with some
observations on the component parts of mem-
brane.

XC.

327

Hatchett, CharLES. An analysis of a mineral sub-
stance from North America, containing a me-
tal unknown.

Experiments and observations on the various
alloys, on the specific gravity, and on the com-
parative wear of gold.

Analysis of a triple sulphuret of lead, antimony,
and copper, from Cornwall.

Analytical experiments and observations on lac.

191

An analysis of the magnetical pyrites; with re-
marks on some of the other sulphurets of iron.
Observations on the change of some of the proxi-
mate principles of vegetables into bitumen;
with analytical experiments on a peculiar sub-
stance which is found with the Bovey coal.
On an artificial substance which possesses the
principal characteristic properties of tannin.
Additional experiments on the above subject.

109

A third series of experiments on the same subject. XCVI.

A description of a process by which corn tainted with must may be completely purified. HEBERDEN, WILLIAM, M. D. A table of the mean heat of every month for ten years, in London, from 1763 to 1772 inclusive.

HEBERDEN, WILLIAM, Jun., M. D. On the influence of cold upon the health of the inhabitants of London.

LXXXVI. 279

HELLINS,* Rev. JOHN. A new method of finding the equal roots of an equation by division.

Dr. HALLEY'S quadrature of the circle improved;
being a transformation of his series for that
purpose, to others which converge by the
powers of 80.

LXXII. 417

LXXXIV. 217

Vol.

Page.

HELLINS,* Rev. JOHN. Mr. JONES's computation of the hyperbolic logarithm of 10 improved; being a transformation of the series which he used in that computation, to others which converge by the powers of 80. To which is added a postscript, containing an improvement of Mr. EMERSON'S Computation of the same logarithm. LXXXVI. 135 A new method of computing the value of a slowly converging series, of which all the terms are affirmative.

An improved solution of a problem in physical
astronomy, by which swiftly converging series
are obtained, which are useful in computing
the perturbations of the motions of the Earth,
Mars, and Venus, by their mutual attraction.

A second appendix to the above, containing for-
mulæ for computing the coefficients A and B,
by which the arithmetical work is consider-
ably facilitated.

Of the rectification of the conic sections.

LXXXVIII.183

On the rectification of the hyperbola by means of
two ellipses, proving that method to be cir-
cuitous, and a process in which a new theorem
for the rectification of that curve is discovered. CI.

HENRY, WILLIAM, M. D. Experiments on carbon-
ated hydrogenous gas, with a view to deter-
mine whether carbon be a simple or a com-
pound substance.

A series of experiments with a view of decom-
posing the muriatic acid.

Experiments on the quantity of gas absorbed by
water at different temperatures, and under
different pressures.

Appendix to the above.

110

LXXXVII. 401

Description of an apparatus for the analysis of the
compound inflammable gases by slow combus-

tion; with experiments on the gas from coal. XCVIII.
Z

282