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under ground. By Sir Hans
Sloane - - Page 257
Observations towards composing a
natural history of mines and me-
tals. By Dr. Nicholls - 259
A new apparent motion discovered
in the fixed stars; its cause as-
signed; the velocity and equable
motion of light deduced. By
the Rev. James Bradley - 260
Observations made in a Journey to
the peak in Derbyshire. By Mr.
J. Martyn, F.R.S. - - 264
An account of the imperial salt
works of Soowar, in Upper Hun-
gary. By Ernest Bruckman,
M.D. - - - 266
Magnetical observations and experi-
ments. By Servington Savery,
Esq. of Shilston - - 267
An account of the different sorts of
paper of the ancients. By the
Hon. Sir John Clerk, F.R.S. 270
Conjectures concerning stars which
sometimes appear and disappear;
and on Saturn's ring. By Peter
Lewis de Maupertuis - 272
On the nature of intermitting and
reciprocating springs. By Mr.
Joseph Atwell, F.R.S. - 273
Experiments to prove the existence of a fluid in the nerves. By Alexander Stuart, M.D. F.R.S.
Experiments on the friction of pul-
leys. By the Rev. J. T. Desa-
guliers - - 277
Of a beaver. By C. Mortimer,
M.D. R.S.S. - - ib.
On the cause of the general trade
winds. By George Hadley, Esq.
F.R.S. - - - 279
Account of the experiments made
June 1. 1734, before several mem-
bers of the Royal Society, and
others, on a man who suffered
himself to be bitten by a viper, or
common adder; and on other
animals likewise bitten by the
same and other vipers. By Crom-
well Mortimer,M.D. Seer. R.S.
An attempt to explain the phenome-
non of the horizontal moon ap-
Observations on several species of
fresh-water polypi. By M.Abra-
ham Trembley, F. R. S. Page 309
On fossil shells. By the Rev. Roger
Pickering - - 912
Concerning an extraordinary large
fossil tooth of an elephant. By
Mr. Henry Baker, F.RS. - ib.
An account, in pounds and ounces,
of the suprising quantities of food
devoured by a boy, 12 years old,
in six successive days, at Black
Barnsley, in Yorkshire. Com-
municated by Dr. Mortimer, Sec.
On the death of the Countess Cor-
nelia- Zangari and Bandi, of
•Cessna - - - 313
Some observations on the cancer
major. By Mr. Peter Collin-
son - - - 316
Observations on the precipices or
cliffs on the north-east sea coast
of the county of Norfolk. By
Mr. William Arderon - 318
Observations on a sort of libella, or
ephemeron. By Mr. Peter Col-
linson - - 320
On the perpendicular ascent of eels.
By Mr. Wm. Arderon, F. R. S. 321
On birds of passage. By Mr. Mark
Catesby, F.R.S. - - ib.
Concerning the property of water
efts, in slipping off their skins as
serpents do. By Mr. David Er-
skine Baker ':-' - 325
A Letter from Mr. G. Stovin, con-
cernvng the body of a woman, and
an antique shoe, found in a
morass in the isle of Axholm 326
On the case of Margaret Cutting,
who spoke distinctly, though she
had lost the apex and body of
her tongue. By James Parsons,
M.D. F.R.S. - - 327
An account of the experiments made
to discover whether the electrical
power, when the conductors of it
were not supported by electrics
per se, would be sensible at great
distances: with an enquiry con-
cerning the respective velocities
of electricity and sound. By
William Watson, F,U.S. 329
Of the Giants' Causeway in Ireland.
By the Rev. Richard Pococke,
LL.D. - - Page 336 On the everlasting fire in Persia.
By Dr. James Mounsey - 339
Of the locusts, which did vast da-
mage in Wallachia, Moldavia,
and Transilvania, in 1747-8 S3'J
On the lacrymas batavicae, or glass
drops. By Claud. Nic. le Cat,
M.D. F.R.S. - . 340
Letter from Leonard Euler, Prof.
Math, at Berlin, and F. R. S.
concerning the gradual approach
of the earth to the sun - 342 Letter from Mr. Professor Euler
concerning the contraction of the
orbits of the planets - ib.
New discoveries relating to the his-
tory of coral, f By Dr. Vitaliano
Donati ... 343.
On the class of the phocs marina!.
By James Parsons, M. D.
F.R.S. - - 345
Letter, dated May 2. 1750, from
Mr. Freeman at Naples, relating
to the ruins of Herculaneum 347
Obervations on the sex of flowers.
By W. Watson, F.R.S. - 349
Concerning Mr. Bright, the fat
man at Maiden, in Essex. By
T. Cole, M.D. - - 850
On the phenomena of electricity in
vacuo. By M^Wm. Watson 352
On coral. By the Sieur de Peys-
sonnel, M.D. - - 353
Letters of the Abbe Mazeas, F.R.S.
on the success of the late experi-
ments in France, concerning the
analogy of thunder and electri-
city ... 356
Letter from Benj. Franklin, Esq.
concerning an electrical kite.
Dated Philadel. Oct 1.1752 357
Of the great alterations which the
islands of Scilly have undergone
since the time of the ancients.
By the Rev. Mr. William Bor-
lase - - - 358
Account of the death of Mr. George
Wm. Richman, professor of ex-
perimental philosophy, and a
member of the Imperial Academy
of Sciences at Petersburgh 360
On the books and ancient writings
dug out of the ruins of an edifice
near the site of the old city of
Herculaneum - Page 362
An extraordinary and surprising
agitation of the waters, though
without any perceptible motion of
the earth, observed in various
parts of Great Britain, both ma-
ritime and inland, on the same
day, and chiefly about the time
that the earthquake took place at
Lisbon - - 363
The wonderful configurations of the
smallest shining particles of snow,
with several figures of them. By
John Nettis, M.D. - 373
Of the fossil shells called Orthocer-
atites. By Edward Wright,
M.D. - - 875
An account of what happened at
Bergemoletto, by the tumbling
down of vast heaps of snow from
the mountains there, on March
19. 1755 - - 877
An essay towards ascertaining the
specific'gravity ofliving men. By
Mr. John Robertson, F.R.S. 379
On polypes, fossils, &c. - 380
On the impressions of plants on the
slates of coals. By Mr. Emanuel
Mendes da Costa, F.R.S. 381
Description of several small marine
animals. By Job Baster,M.D.382
Of some fossil fruits, and other bo-
dies, found in the island of Shep-
pcy. By James Parsons, M. D.
F.R.S. - - ib.
On the heat of the weather in Geor-
gia. By H. Ellis, Esq. 384
Remarks on the several accounts of
the fiery meteor, (which appeared
on Sunday, the 26th of Nov.
1758,) and on other such bodies.
By John Pringle, M.D. F.R.S. 385
The regular diurnal variation of the
horizontal magnetic needle. By
John Canton, M.A. F.R.S. 387
Conjectures concerning the cause,
and observations on the pheno-
mena, of earthquakes; particu-
larly of that great earthquake of
Nov. 1. 1755, which proved so
fatal to the city of Lisbon. By
the Rev. John Michel 1, M. A.
Of artificial cold produced at Pe-
tersburgh. By Dr. Himsel 392
Of a whirlwind in New England.
By Mr. John Winthrop, Prof,
of Phil, at Cambridge, U.S. 393
Burning cliffs in Dorsetshire. By
John Stephens, M. A. . 395
On the extraordinary agitation of the
waters in Mount's Bay, and other
places, March 31. 1761. By the
Rev. W. Borlase, M.A. - 397
Account of a mummy inspected at
London in 1763. By John Had-
ley, M.D. F.R.S. - 399
Observations on the proportion
which the decrease of heat bears
to the height of situation. By
Thos. Heberden, M.D. F.R.S.
On the nature and formation of
sponges. By John Ellis, Esq.
F.R.S. - - 404
Description of Mount Sinai. By
E. W. Montague - 406
Three papers containing experi-
ments on factitious air. By the
Hon. Henry Cavendish, F.R.S. 408
Observations on animals commonly
called amphibious. By Dr. Par-
sons, F.R.S. - - 413
An account of some peculiar ad-
vantages in the structure of the
wind-pipes of several birds. By
Dr. Parsons, F.R.S. - 416
Two letters from the Hon. Wm.
Hamilton, containing an account
of the last eruption of Mount
Vesuvius. Dated Naples, June
10. 1766, and Feb. 3. 1767 417
Formation of islands. By Alex.
Dalrymple, Esq. - - 419
On the eruption of Mount Vesu-
suvius, in 1767. By the Hon.
Wm. Hamilton. Dated Naples,
Dec. 29. 1767 - - 421
Observations on the bones found
near the river Ohio, in America.
By Wm. Hunter, M.D. F.R.S.
Of several phenomena observed
Maskelyne, B.D. F.R.S. and
astronomer royal - Page 458
Account of a woman in the shire of
Ross living without food or drink.
By Dr. Mackenzie - 460
Of persons who could not distin-
guish colours. By Mr. J. Hud-
dart ... 463
Of the heat, &c. of aaimals and ve-
getables. By Mr. J. Hunter,
F. RS. - - - 463
The force of fired gunpowder, and
the initial velocities of cannon
balls, determined by experiments.
By Mr. Charles Hutton 465
An account of a remarkable imper-
perfection of sight. In a letter
from J. Scott - - 466
An account of the calculations made
from the survey and measures
taken at Schehallien, in order to
ascertain the mean density of the
earth. By Chas. Hutton, Esq.
F.R.S. - - - 467
Account of an infant musician. By
Charles Burney, Doctor of Music
and F.R.S. - - 468
On the eruption of Mount Vesu-
vius, in August, 1779. In a
letter from Sir Wm. Hamilton,
K.B. F.R.S. - - 470
Astronomical observations relating
to the mountains of the moon.
By Mr. Herschel - 474
A storm oflightning at East Boum,
Sept. 17. 1780 - - 475
Account of the Harmattan, a sin-
gular African wind. Dy Dr.
Dobson - - ib.
Account of the termites in Africa,
and other hot climates. By Mr.
H. Smeathman - - 476
Of a thermometer for measuring
the highest degrees of heat. By
Josiah Wedgwood - 480
On the proper motion of the sun
and solar system among the stars.
By William Herschel - 481
Account of some late fiery meteors.
By Dr. Blagden - - ib.
On the construction of the heavens.
By Dr. Herschel - 482
New experiments on heat. By Col.
Sir B. Thompson, Knt. - 483
On the strata observed in sinking for
water at Boston,Lincolnshire. By
Mr. James Limbird, surveyor to
the corporation - Page 485
Of three volcanoes in the moon.
By Wm, Herschel, LL.D. 486
Experiments made to determine the
positive and relative quantities
of moisture absorbed from the at-
mosphere by various substances,
under similar circumstances. By
Sir Benj. Thompson, Knt. 487
On the natural history of the
cuckoo. By Mr. E. Jenner 489
Catalogue of a thousand of new
nebula; and clusters of stars;
with a few introductory remarks
on the construction of the hea-
vens. By Wm. Herschel 494
Discovery of a sixth and seventh
satellite of the planet Saturn;
with remarks on the construction
of its ring, its atmosphere, its ro-
tation on an axis, and its sphe-
roidical figure. By Wm. Her-
schel, LL. D. F. R. S. - 499
Observations on the sugar-ants.
By John Castles, Esq. - 501
On basaltes and granite. By
Thomas Beddoes, M.I). 503
On nebulous stars, properly so
called. By William Herschel,
LL.D. F.R.S. - - 507
On the Decomposition of fixed
air. By Smithson Tennant,
Esq. F.R.S. - - 512
On the ring of Saturn. By Wm.
Herschel, LL.D. F.R.S. ib.
Experiments and observations on
the production of light from dif-
ferent bodies, by beat and by at-
trition. By Mr. Thos. Wedg-
wood - 514
Observations on bees. By John
Hunter, Esq. F.R.S. - 518
Account of some remarkable caves
in the principality of Bayreuth,
and of the fossil bones found
there. By John Hunter 531
On the nature and construction of
the sun and fixed stars. By Wm.
Herschel, LL.D. F.R.S. 535
An account of the late eruption of
Mount Vesuvius. By Sir Wm.
Hamilton, K.B. F.R.S. Dated
Naples, August 25. 1794
On Hydatids. By Everard Home,
Esq. ... 546
On the nature of the diamond. By
Smithson Tennant, Esq. 548
Experiments to determine the force
of fired gunpowder. By Ben-
jamin Count Rumford - 549
An enquiry concerning the source
of the heat which is excited by
friction. By Benjamin Count
Rumford, F.R.S. - 553
Singular instance of atmospherical
refraction. By W. Latham 555
The Croonian Lecture. Being ex-
periments and observations on the
structure of nerves. By Everard
Home, Esq. F.R.S. - 557
On a submarine forest, on the east
coast of England - 560
Investigation of the powers of the
prismatic colours to heat and illu-
minate objects. By William
Herschel, LL.D. - $63
Experiments on the refrangibility of
the invisible rays of the sun. By
William Herschel, LL.D. 565
Chemical experiments on zoophytes;
with some observations on the
component parts of membrane.
By Chas. Hatchett, Esq. 567
Experiments on the ascent of the sap
in trees. By Mr. Knight 573
Observations by Dr. Herschel, with
a view of investigating the nature
of the sun, &c. - - ib.
Experiments on tfie light which is
spontaneously emitted from va-
rious bodies, and on solar light.
'By Dr. Hulme - - 574
On the theory of light and colours.
By Dr. Young - - 575
Experiments and observations on
certain stony substances, which
at different times are said to have
fallen on the earth. By Luke
Howard, Esq. • ib.
On the construction of the heavens.
By Dr. Herschel - 576
Account of some cases of the pro-
duction of colours not hitherto de-
scribed. By Dr. Young - 576