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xo ^ .




THE



PHILOSOPHICAL TRANSACTIONS



OF THE



ROYAL SOCIETY OF LONDON,



FROM THEIR COMMENCEMENT, IN 1665, TO THE YEAR 1800;



abrtliseli,



WITH NOTES AND BIOGRAPHIC ILLUSTRATIONS,



BY



CHARLES HUTTON, LL.D. F.R.S.
GEORGE SHAW, M.D. F.R.S. F.L.S.
RICHARD PEARSON, M.D. F.S.A.



VOL. XI.

FROM 1755 to 1763.



LONDON:
PRINTED BY AND FOR C. AND R, BALDWIN, NEW BRIDGE-STREET^ BLACKFRIARS.

1809.



/<^(^^sr



LOAN STACI^



CONTENTS OF VOLUME ELEVENTH.



Page

JVIr. prince, unusual Agit. of the Sea 1
Mr. Holds worth, op the same at Dartmouth 1
Dr. Nettis, Figures of Snow Crystals. ... i

Dr. Rutty, the Copper-springs in Pennsylvania 3
Abbe Mazeas, Ancient method of Painting 4

Dr. Parsons, on the same subject; 6

M. Vernede, the Earthquakes at Maestricht 8
Capt. Affleck, Agit. of the Sea at Antigua f)

Dr. Wright, on a remarkable Fossil 10

on the Orthoceratites ibid

B, Wilson, on the Leyden Experiment. ... 15
Biographical Notice of Mr. B. Wilson . . . ibid

Mr. Rutherford, Agit. of the Waters lb"

Dr. Ward, Pieces of Lead with Rom. Inscrip. 17
Mr. Walmesley, on the Preces. and Equin- ibid

Inequal. of the Eartb's Motions 3 1

Biographical Notice of Mr. C Walmesley IJ
J, Simon, on the Weather in Dublin .... 41
Dr. Bruni, on People overwhelmed in Snow 42
Dr. R. Pulteney, Rare J)nglish Plants.... 45
Biographical Notice of Dr. Rd. Pulteney . . ibid
J. Ellis, on the China and Japan Varn. Tree 46
Dr. Brakenridge, Population of Britain. ... 51

Ja. Dodson, Annuities on Lives 55

Abr. Trembley, Earthquake at Cologn, &c. 56
Dr. Watson, Carlsbad Waters in Bohemia. . ibid
Mr. Winthorp, Earthquake in New England 62

Dr. Wall, on the Malvern Waters 68

Dr. Miles, the Carlsbad Mineral Waters. . ibid
J.Robertson, the Specific Gravity of Men 71
Dr- Huxham, the Gut Ileum cut through 73
Dr. Peyssonel, Leprosy in Guadaloupe. ... 74

C. Paderni, Antiquities of Herculaneum . . jg

Wm. Borlase, Subterraneous Trees 80

K. Fitzgerald, Hales's Distillation of Sea

Water by the Steam Engine 81

Abr. Trembley, Earthquakes, Polypes, Fossils 83

Rd. Pulteney, on the Deadly Nightshade. . 85

J. Nixon, Antiquities at Herculaneum . . . ibid
Mr. Dyer and Mr. Milles, Thunder Storm

in Cornwall 86

Dr. Collet, Peat-pit near Newbury, Berks, ibid

Anonimous,Alterations, Pantheon at Rome 87

J. Walker, New Medical Well near Moifat ibid

Abr. Trembley, Thermometer at the Hague 97

W. Lewis, Examination of Platina ibid

J. Nixon, Temple of Serapis at Puzzuoli. . 106

J. Swinton, on a Parthian Coin lOp

J. Ellis, a Red Coral from the East Indies ibid

T. Tomlinson, of a Storm at Wigton 112

J. Smeaton, effect of Lightning on a Steeple 113

Dr. Pringle, Case of Horace Ld- Walpole. . 115

Dr. Why tt, on the same Case 117

Biographical Notice of Dr. Robert Whytt. . ibid

Dr. Pringle, again on the Case of Ld. Walpole 1 22

Virtues of Soap in the Stone. . ibid

Dr. Drummond on the same subject 123

M Da Costa, Impressions of Plants on Slates ibid

Apothecaries, Catalogue of the 50 Plants, &c • 1 24

Dr. Darwin, on the Ascent of Vapour. . . . ibid

Biographical Notice of Dr. Erasmus Darwin ibid

Geo. Edwards, New Species of Snipe, ... 130

VOL. XI. a



Page
Dr. Baster, some small Marine Animals. . 131

J. Ellis, Remarks on the same 134

J. Robertson, Effect of Wedges, &c. 136

Geo. Edwards, on a Nocturnal Solar Iris. . 137
Dr. Garden, Prickly Pear and Indigo Plant

in colouring the Juices of Animals ibid

Sir Andr. Mitchell, Shower of Black Dust 138
Ld. C. Cavendish, some New Thermometers ibid

Dr. Torkos, Double Female Monster 142

Wm. Burnct,on the conjoined Twins 144

Dr. Akenside, on the Lymphatic Vessels. . 145
Biographical Notice of Dr. Mark Akenside ibid
W . Mountaine & J. Dodson, Variat . of Need • 1 49
Dr. Parsons, Extra. Tumours on the Head 155
Rd. Forster, Population of Great Sheffbrd. . 157

Jos Warner, Case of an Aneurism ibid

K. Fitzgerald. Incr. the Steam in an Engine ibid
J. Chevalier, Observa. of several Eclipses. . 158
Rd. Grindall, Use of Bark in Mortifications 159

Dr. Pringle, on Ld. Walpole's Case 16O

Dr. Whytt, Carlsbad Wat. Lime Wat. &c. 16I

Dr. Parsons, Fossil Bodies at Shepey l65

Dr. Bradley, Observations on a Comet. ... 169
T. Simpson. Horary Alter, of the Earth's Eq. 170
Dr. Huxham, Heat of the Air in July 1757 176
Phil. Miller, Toxicodendron and Var. Tree 177
J. Ellis, on the same subject, in answer. . . . 181
Rd. Forster, on the Population of England. . 186
Dr. Brakenridge, on the same subject. ... 188
Dr. Franklin, EfF. of Electricity on Paralytics 189
D, Klinkenberg, Observations on a Comet 19O
J. Smeaton, Heat of the Air at Edystone,&c. 19I
Mr. Perry, on an Earthquake at Sumatra. . 192
J.Robertson, Fall of Water under Bridges. . 193
Wm. Borlase, an Earthquake in Cornwall 196
Rd. Pulteney, on the Sleep of Plants, &c.. . 197
Rd. Oram, Convulsive Fits from Worms. . 203

J. Gaze, on the same case ibid

Dr. Huxham,Extr. Heat July, 1757. &itseff. 204

J. Piatt, on a Large Fossil Thighbone ibid

Dr. Layard, Inoculation of the Cows. . . . 2(^6
Pat. Murdoch, Trigonometry Abridged. ... 210
Dr. Johnstone, Extra. Cases of Gallstones, . 211
Biographical Notice of Dr. James Johnstone ibid
N. Jenty, Cohesions of all the Intestines. . 214

Pat. Murdoch, of Geographical Maps 215

Wm. Mountaine, on Maps and Charts. ... 218
Dr. Whytt, Effects of Blisters in Coughs &c. 220
Jos. Warner, on Stones in the Bladder. . . . 225
Dr. Peyssonel, Naked Snail producing Purple ibid

on Worms that Form Sponges 227

Dr. Wright, on Salt of Steel ent. the Lacteals 229
J. Nixon, Antiquity of Glass in Windows 232
Dr. Munckley, Use of the Bark in a Fever 235
Sir J. Burrow, Earthquake in Surrey & Kent ibid
Biographical Notice of Sir James Burrow. . ibid

Rob. Home, on a thumb torn off. ibid

C. Paderni, Antiquities at Herculaneum. . . . 236
Tho. Simpson, on Isoperimetrical Problems 238
Dr. Peyssonel, Sea Alga with Broad leaves 241
Capt. Chapman, Dist. Fresh from Sea Water 243
J. Wendlingen, Observ. of Lunar Eclipse. . 245
Dr. Peyssonel, Obs. of a Slight Earthquake ibid



5 /JO



11



CONTENTS.



Page

Apothecaries, Catalo. of the 50 Plants, &c. 246
Dr. Watson, on the Plants called Lichen. . ibid
Capt. Chapman, Fossil Bones of an Alligator 259
Dr. Himsel, Rare kind of Orthoceratites. . '26l
Pat. Brydone, EfF. of Electricity in Diseases 26'2

Dr. Ward, the Black Assize at Oxford 2()3

Fa. Gaubil, Plan of Peking in China 265

K. Fitzgerald, to work the Ventilators by

the Steam Engine '266

J. Dollond & J. Short, Refrangibility of Light q67
Dr. Watson, Extra. EfF. from Convulsions 27 2
Fra. Fauquier, Storm of Hail in Virginia. . 273
Dr. Layard, Extra. Case of a Diseased Eye 274
H. Ellis, Heat of the Weather in Georgia. . 277

Tho. Simpson, on the Sums of Series 278

J. Chevalier, Observ. of a Lunar Eclipse.. 284
l)r. Peyssonel, the Manchenille Apple. . ibid

Wm. Arderon, Magnetism in Brass 285

H. Baker, on the Sea Polypus 286'

Mr. Wooler, Fossil Skeleton at Whitby 289

J. Swinton, Phoenician Numerals ... 29 1

Cha. Walmesley, Motions of Satellites. .. . 2 5

Dr. Wall, Case of the Norfolk Boy 307

Dr. Peyssonel, American Sea-Sun-Crown ibid

J. Ellis, Rare Species of Barnacles ibid

Dr. Watson, Poison of Hemlock Dropwort 3 1 1

Dr. Forbes, Limpet Fish of Bermuda 313

Dr. Morton, on the same ibid

T. White, on Cinnamon, Cassia, or Canella ibid

Fr. Blake, Greatest Effect of Engines 317

R. Marsham, on the Growth of Trees. . . . 320
W. Borlase, Antiquities in Cornwall.... 322
S. Pullein, New Improved Silk-Reel . . . 324

R. Chambers, on Staining Marble ibid

Dr. Peyssonel, on the Sea Millepedes 326"

S. Cooper, Thunder Storm at Norwich. . . . 327
J. Colebrooke, Encaustic Painting. . . . 328, 332
S. Pullein, Cocoon or Silk Pod from Amer. jbid
Dr. Brookes, on the Weather in Maryland. . 3 53
Edw. Delaval, Electrical Experiments. . . . 334
Dr. Henry, Tend, and Muscles Ossified 335, 336

Dr. Bevis, Account of a Comet 337

N. Munckley, on the same Comet ibid

Apothecaries, Catalogueof the5()Plants,&c. 338
J. Smealon, on Water Mills & Wind Mills ibid
Ja. Bate, Change of Colour of a Negro. . . . 370
Dr. Himsel, a Paralytic cured by Electricity 372
M. Hubner, on the Terra Tripolitana. . . . ibid
Era. Da Costa, on the same substance. . . . ibid

Jos. Warner, Case of an Empyema ibid

Sig. Venuti, Antiquities in Italy ibid

J. Ellis, on Preserving Seeds 37 j

Dr. Dawson, Suppression of Urine 376

Dr. Pringle, of a Fiery Meteor 377, 3s 8

Dr. Rutty, on Mineral Waters. . 392

J. Van Rixtel, on a Storm of Thunder. . . . ibid

Wm. Mountaine, on the same 393

G. Night, on the same subject 394

Rd. Forster, on a Fiery Meteor ibid

J. Colebrooke, on the same . ibid

Wm. Dutton, on the same 395

Jos. Warner, Stones in the Urethra ibid

B. Wilson, Exper. on the Tourmalin 396

R. Symmer, Exper. on Electricity 405



PagR

Dr. Mitchell, Electrical Cohesion 41S

Dr. Watson, Lyncurium of the Ancients. . 419
J. Canton, Diurnal Variat. of the Needle. . 42 1

Dr. Brakenridge, Sections of a Solid 424

P. CoUinson, Migration of Swallows ibid

Ja. Short, Observations on a Comet 428

J. Mitchell,, on the same Comet ibid

N. Munckley, on the same ibid

Mark Day, on the same again ibid

Dr. Rutty, on some Vitriolic Waters. . . . 429
KrashennicofF, North-West of America. . 432

T. Barker, Mutations of the Stars ibid

Dr. Hasselquist, making Sal Ammoniac. . 433
S. C. Hollmann, Fossil Wood in Hesse, &c. 435

F. Beccaria, Experiments in Electricity ibid

B. Franklin, on the same Experiments. . . . ibid

Dr. Darwin, on an Hoemoptysis ibid

Dr. P. Russel, Earthquakes in Syria 437

Dr. Mills, on the Bovey Coal 433

Biographical Notice of Dr. Jere. Mills ibid

Tho. Simpson, New Method of Series 441

J. Michell, Account of Earthquakes 448

M. De la Caille, Observations on a Comet. . 472
Biographical Notice of the Abbe De la Caille ibid

Sig. Venuti, Antiquities in Italy 473

J. Nixon, on the same subject ibid

Apothecaries, Catalogue of 50 Plants ibid

Dr. Parsons, the Felis Caracal of India. . . . 474
Greo Edwards, the Frog-fish of Surinam. . ibid

Cha. White, Case of a Broken Arm 475

Dr. Brady, Bone in a Man's Pelvis 476

Dr. Willis, on Euphorbium swallowed. . . . ibid
Dr. Himsel, Artificial Cold at Petersburg. . 480
Cha. White, Luxation of the Thigh Bone. . 48V

J. Swinton, on a Parthian Coin 484

H. Baker, Stone in a Horse's Colon ibid

Sir F. H. Eyles Stiles, Anc. Greek Music 485

Mat Raper. on the Roman Foot ibid

K. Fitzgerald, a Metalline Thermometer. . 49 1
(Jeo. Edwards, a Bird between a Turkey and

a Pheasant 493

T. Needham, Asbestos in France 494

Dr. Bruno, Hot Baths of Vinadio 495

Sir Fr. Eyles Stiles, of a kind of Bees 496

Cha. Young, a Luxated Thigh Bone ibid

J. Swinton, on an Etruscan Coin 500

R. J. Boscovich, Transit of Venus ibid

Biographical Notice of R. J. Boscovich. . . . ibid
N. Maskelyne, Annual Parallax of Sirius. . 501

B. Wilson, Electrical Experiments 504

Tor. Bergman, Electrical Observations. . , . 506
Biographical Notice of Torbern Bergman. . ibid
Dr. Pemberton, Lat. by Two Observations. , 507
J. Ellis, the Plants Halesia and Gardenia. . 508

J. Short, Eclipse of the Moon 510

S. More, Effect of Cleansing Brass Wire. . ibid

Dr. Miller, Analysis of the Bovey Coal 512

S. Klingenstiern, Aberration of Light.... 514
D. Wark, Fencing Banks with Furzes. . . ibid

T. Barker, a Remarkable Halo ibid

J. Winthorp, a Meteor and Whirlwind ibid

N. Maskelyne, Aberrat. of Refracted Light 517

M. De la Caille, Parallax of the Moon 5 19

N. Maskelyne, on the sanie subject 520



CONTENTS.



Ill



Page

J. Swinton, on a Samnite Denarius 521

Sir F. H.Eyles Stiles, Erupt. ofVesuvius521, 522

R. Mackinlay, on the same, and a Statue. . ibid

T. W. on Halley's Tables of Lives 523

K. Fitzgerald, to make Trees bear Fruit. . 524

Dr. Gaertner, on the Urtica Marina 525

Apothecaries, Catalogue of 50 Plants. . . . 530

Dr. Watson, on Hemlock, by Dr. Storke, . ibid

J, Swinton, on an Anthelion 532

Bp. of Ossory, Causeway at Dunbar 533

J. Swinton, Meteor seen £t Oxford SS^

E. M. Da Costa, Causeways in Scotland. . 535

R, Dunthorne, Tables of Jupiter's Satellites ibid

Dr. Raster, Dissertation on Zoophytes. . . . 537

J. Stephens, an uncommon Phenomenon. . 537

J. Nixon, U.se of Glass in Windows, &c.. . 539

Dr. Lysons, on the Cepphus 541

R.More, Population of Holy Cross ibid

Mr. Malloy, &c. Earthquake at Lisbon. . . . i bid

Dr. Henry, Case of Ossified Muscles 542

K. Fitzgerald, New Barom. and Thermom. 543

Dr. T. Heberden, Earthquake at Madeira. . ibid

Dr. Watson, great Artif. Cold at Petersburg 54+

N. Bliss, Transit of Venus at Greenwich. . 552

Ja. Short, on the same, London 553

John Canton and Samuel Dunn, London. . 555

Nevil Maskelyne, St. Helena 557

Richard Haydon, l^eskeard 559

Peter Wargentin, Sweden 560

Jerome Lalande, Paris 562

Benedict Ferner, France ibid

J.' Porter, Constantinople 563

T. Bergman, Upsal 564-

M. Plauman, Cajaneburg in Sweden ibid

Nath Bliss, a general Account ibid

Ant. Ximenes, at Madrid 571

M. Chappe, Tobolsk in Siberia. . * ' ibid

J. Lulofs, at Leyden ibid

Dr. Frewen, a Stone from the Perineum. . ibid

Ph. Mordant, Bones of the Ears dropped out 574

Dr. Nichols. Observ. on the Body of Geo.IL ibid

Ch. Walmesley, the Planetary Motions. . . . 579

Dr. Watson, on Nollet's Electricity 580

Rd. Pulteney, on a very large heart 585

Edw. Delaval, Experiments in Electricity. . 589

J. Ellis, of an Encrinus or Star-fish 590

Mat. Raper, on Norwood's Measure 593

M. Delalande, on the same 594

M. Pingre, Transit of Venus at Rodrigues. . 595

Cha. Mason, the same at the C. of G. Hope ibid

Latitude of the C. of Good Hope 596

Wm. Hirst, Transit of Venus at Madras. . ibid

Sig. Zanotti, the same at Bologna 597

J. Wood, Burning Rock and Flaming Well 600

W. Borlase, Earthquake & Motion of Waters 601

N. Maskelyne, going of a Clock at St. Helena 604

B. Wilson, Gems similar to the Tourmalin 606

H. More, Tides in the Gibraltar Straits 607

Dr. Frewen, a Man Stupified by Smoke. . 60S

B. Franklin, Electrical Experiments 609

J. Canton, on Delaval's Electrical Exper.. . ibid

S. Dunn, the Horizontal Sun and Moon. . 61 L

J. Bartram, on an Aurora Borealis 6l4

B. Franklin, on the same ibid



Page

Rd. Forster, on Noxious Animals , 614.

A. Mason, Agitation of the Sea, and Epide-
mic disorder at Barbadoes ibid

T. Bergman, Aurorae Boreales in Sweden. . 6l5

J. Beccaria, Double Refraction in Crystals. . ibid

Apothecaries. Catalogue of 50 Plants ibid

W. Hudson, Schaeffer on Fungi ibid

Biographical Notice of Mr. Wm. Hudson. . ibid

Wm. Borlase, Agitation of the Sea 621

Dr. Huxham, Two Cases in Surgery 623

Dr. Cantwell, Extracting the Cataract. . . . 625

Dr. Wollaston, Mortification of Limbs. . . . 626

James Bones, on the same Case 628

C, Mason, the going of a Clock at St. Helena 630

J Short, on the same subject 631

Observation of a Lunar Eclipse. . 6'32

Dr. Bevis, on the Eclipse ibid

Mr. Evatt, onaMountain near Ashford. . , . ibid

Dr. Wolfe, a Hiero Fountain in Hungary. . 633

Dr. A Russell, on a Marine Production 635

N. Maskelyne, Lunar Method of Longitude 636

S. Dunn, on the Lunar Atmosphere 644

M. Delalande, Comet observed at Paris. . . . 645

Wm. Magee, Transit of Venus at Calcutta ibid

Dr. Wollaston, Mortification of Limbs 646

N. Maskelyne, on the Tides at St. Helena. '. 6^7

M. Delalande, Lunar Method, &c 648

Ja. Short, Sun's Parallax determined 649

Biographical Notice of Mr, James Short,, ibid

Dr. Watson, on Conductors of Lightning. . 660

Dr. Lysons, the Case of Dr. Ja. Bradly 663

J. Canton, Compressibility of Water 665

S. Dunn, on a Solar Eclipse 6"57

Dr. Watson, Catarrh and Dysentery ibid

J. Lulofs, Solar and Lunar Eclipses 669

Dr. Solander, on the Gardenia Plant . . ibid

Biograph. Notice of Dr. Dan. Cha Solander ibid

J. Ellis, on the Cochineal Insects 674

P. Daval, on the Sun's Distance 677

P. Gabry, Observation of a Comet ibid

on a Fiery Meteor ibid

Wm. Milbourne, Decrease of a River 678

Wm. Arderon, Quantity of Rain ibid

Dr. Watson, Use of Electricity in a Tetanus 679

Wm. Borlase, Mild Weather and Rain 684

Ja. Ferguson, Transit of Venus 685

S. Dunn, Occultation of Jupiter * ibid

Apothecaries, Catalogue of 50 Plants .... ibid

J. Bartram, on a Species of Wasps ibid

Tho. Dawes, on the Plague at Aleppo 686

Henry Home, Observations on Sand Iron. . 689

Dr. Pallas, on the Degree of Cold at Berlin 694

J. Stirling, a great Darkness in America . . ibid

P. A. Du Pont, Remarkable Marine Insect 695

M. Wargentin, on the Transit of Venus . . ibid

S.Dunn, on West's Cens. of Mercat. Chart 696

Biographical Notice of Mr, Samuel Dunn. . ibid

W.Mountaine, Censure of Mercator's Chart 697

G. D. Ehret, on a Species of Ophrys 701

E, Kinnersley, Experiments in Electricity , . 702

T. Bergman, on Electricity and Thunder . . 705

Mr. Achard, Remarks on Swallows, &c. . . ibid

Peter CoUinson, on the same 706

Dr. Hamilton, on the Mechanical Powers ibid
a2



CONTENTS.



Page
Biographical Notice of Dr. Hugh Hamilton ibid
^os. Wilcox, Subterran. Apartments in Italy ibid
G. D. Ehret, on a New Peruvian Plant. . , 708
Dr. Taylor, on Two Roman Inscriptions . . ibid



Page

K. Fitzgerald, on Friction in Engines 70y

J. Short, Longitude of Greenwich and Paris 713

Ja. Ferguson, of a remarkable Fish 717

P- Murdoch, Refrac. Light made Colourless 718



THE CONTENIS CLASSED UNDER GENERAL HEADS

Class I. Mathematics.

1 . Arithmetic, Annuities^ Political Arithmetic.
Population of Britain, BrakenriSge .51 The same subject, Brakenridge 188



Halley's Tables of Lives, T. W 523

Population of Holy Cross, More 54 1



Annuities on Lives, Dodson 55

Population of Great ShefFord, Forster .... 1 57
• - ■ — of England, Forster 186

Ct. Algebra, Analysis y Fluxions,

Isoperimetrical Problems, Simpson 238 New Method of Series, Simpson 44 1

On the Sums of Series, Simpson 278

3. Geometry, Trigonovietry, Surveying.

Trigonometry abridged, Murdoch 210 Sections of a Solid, Brakenridge 425

Isoperimetrical Problems, Simpson 238

Class II. Mechanical Philosophy.



Precession and Equinoxes, Walmesley ....
Inequalities of the Earth's Mot. Walmesley
Horary Alterat. of the Earth's Equat. Simp.



1 . Dynamics.

17 Motions of Satellites, Walmesley 25)5

3 1 Planetarv Motions, Walmesley 579

170



2. Statics.



Specific Gravity of Men, Robertson 71



3. Astronomy f

Precession and Equinoxes, Walmesley

Inequalities of the Earth's Motions, Walmes
Observations of Eclipses, Chevalier

- — on a Comet, Bradley

Horary Alterat. of the Earth's Equat. Simp.
Observations on a Comet, Klinkenberg. . . .

Geographical Maps, Murdoch

Maps and Charts, Mountaine

Observation of a Lunar Eclipse, Wendlingen

-, the same, Chevalier

Motions of the Satellites, Walmesley ....

Account of a Comet, Bevis

On the same Comet, Munckley

- — , Short, Michell, Munckley, Day

Mutations of the Stars, Barker

Observations of a Comet, De la Caille. . . .

Transit of Venus, Boscovicb . .

Annual Parallax of Sirius, Maskelyne ....
Latitude by 2 Observations, Pemberton . ,

Eclipse of the Moon, Short

Parallax of the Moon, De la Caille

Tables of Jupiter's Satellites, Dunthome . .
Transit of Venus at Greenwich, Bliss

■- at London, Short

-^— — — — — Canton, Dunn

^— — — — — at St. Helena, Maskelyne



Chronology, Navigatimi.

17 Transit of Venus at Leskeard, Haydon. ,
at Sweden, Wargentin



31
158
169
170
190
215
218
245
284
295
337
ibid
428
432
472
500
501
507
510
519
535
532
553
555
557



— at Paris, Lalande, Ferner.

— at Constantinople, Porter.

— Bergman, Bliss, Planman
Chappe, Lulofs, Ximene.



559
5t)0
562
563
564
571



Planetary Motions, Walmesley . 579

Transit of Venus, Mason, Pingre 5g5

at Madras, Hirst 596'

Latitude of the Cape of Good Hope, Mason ibid

Transit of Venus at Bologna, Zanotti .... 5^7

Going of a Clock at St. Helena, Maskelyne 604

Horizontal Sun and Moon, Dunn (S\o

Going of a Clock at St, Helena, Mason . . 6'30

Short. ... 631

On a Lunar Eclipse, Bevis, Short 6". 2

Lunar Method of Longitude, Maskelyne . . 636*

Lunar Atmosphere, Dunn 644

Comet observed at Paris, Lalande 645

Transit of Venus at Calcutta, Magee. ..... ibid

The Tides at St. Helena, Maskelyne 647

Lunar Method, &c. F^alande 6'48

Sun's Parallax determined. Short 649

Solar Eclipse, Dunn fifty

Solar and Lunar Eclipses, Lulofs QS9

The Sun's Distance, Daval ^j



CONTENTS. V

Page Page

On a Comet, Gabry 677 Censure of Mercator's Chart, Dunn 696

Transit of Venus, Ferguson 68.5 Mountaine . 667

Occultation of Jupiter, Dunn ibid Longitude of Greenwich and Paris, Short. . 713

Transit of Venus, Wargentin 695

4. Mechanics,

The Mechanical Powers, Hamilton 706 Friction in Engines, Fitzgerald 709

5 . Hydraulics.
Fall of Water under Bridges, Robertson .. 193

6. Pneumatics.^
Ascent of Vapour, Darwin 124-

7. Acoustics, Music.
Ancient Greek Music, Eyles Stiles 483

8. Optics.

Nocturnal Solar Iris, Edwards 137 Horizontal Sun and Moon, Dunn 611

Refrangibility of Light, Dollond 267 Double Refraction in Crystals, Beccaria . . 6l5

Aberration of Light, Klingenstiern 514 Refracted Light Colourless, Murdoch .... 6I8

Maskelyne 517

9. Electricity, Magnetism^ Pyrotechny, Thermometry, &c.

The Leyden Experiment, Wilson 15 Diurnal Variation of the Needle, Canton. . 421

Thermometer at the Hague, Trembley. ... 97 Electrical Experiments, Beccaria 435

New Thermometers, Lord C. Cavendish . . IJ8 ' ~ - Franklin ibid

Variat. of the Needle, Dodson, Mountaine 149 Artificial Cold at Petersburg, Himsel 480

Heat of the Air in July I7i7, Huxham .. 176 Metalline Thermometer, Fitzgerald. .... . 491

Electricity on Paralytics, Franklin 189 Electrical Experiments, Wilson 504

Heat at Edystone, &c. Smeaton 191 Electrical Observations, Bergman . . 506

Effects of Heat in July 17>'i7, Huxham, . , . 204 New Barom. and Thermometer, Fitzgerald 543

Electricity in Diseases, Brydone 262 Great Cold at Petersburg, Watson 544

Heat of the Weather in Georgia, Ellis ^77 On NoUet's Electricity, Watson 580

Magnetism in Brass, Arderon 285 Electrical Experiments, Delaval 689

Electrical Experiments, Delaval 334 • Canton, Franklin, . 609

Electricity on Paralytics, Himsel 372 Conductors of Lightning, Watson 6'60

Experiments on the Tourmalin, Wilson . . 396 Use of Electricity in a Tetanus, Watson . . 679

Electrical Experiments, Symmer 405 Degree of Cold at Berlin, Pallas 694

Electrical Cohesion, Mitchell 418 Electrical Experiments, Kinnersley 702

Lyncurium of the Ancients, Watson 419 Electricity and Thunder, Bergman 705

Class III. Natural History^.

1. Zoology.

New Species of Snipe, Edwards 130 Dissert, on Zoophyes, Baster 537

Small marine Animals, Baster 131 On the Cepphus, Lysons 541

Remarks on the same, Ellis 134 Encrinus or Star- fish, Ellis 590

American Sea-Sun-Crown, Peyssonel 307 Noxious Animals, Forster 6l4

Rare Species of Barnacles, Ellis ibid A Marine Animal, Russel 635

Limpet Fish of Bermuda, Forbes Morton. . 313 The Cochineal Insects, Ellis 674

Sea Millepides, Peyssonel 326 A Species of Wasps, Bartram 685

Felis Caracal of India, Parsons 474 A marine Insect, Du Pont 695

Frog-fi>h of Surinam, Edwards ibid Remarks on Swallows, &c. Achard 705

Bird from a Turkey and Pheasant, Edwards 493 On the same, CoUinson 706

A kind of Bees, Eyles Stiles 496 A Remarkable Fish, Ferguson 717

Urtica Marina, Gaertner , 5 25

2. Botany,

Rare English Plants, Puiteney 45 Catalogue of 50 Plants, Apothecaries, 124, 246

China and Japan Varnish Tree, Ellis 46 338, 473, 530, 6l5, 685

Deadly Nightshade, Puiteney 85 Toxicodendron and Varnish Tree, Miller. . 177



VI



CONTENTS.



Page

On the same, in answer. Ellis. . . R. . .'^ w 181

Sea Alga with broad leaves. Peyssonel, ... 241

The Plants called Lichen, Watson 246

Manchenille Apple, Peyssonel 284

Cinnamon, Cassia, or Canilla, White 313

Halesia and Gardenia, Ellis 508



Paga

Hemlock of Dr. Storke, Watson 530

On SchaefFer's Fungi, Hudson 6l5

The Gardenia Plant, Solander 669

Species of Ophrys, Ehrit 701

New Peruvian Plant, Ehrit 708



Copper Springs in Pennsylvania, Rutty.

A Remarkable Fossil, Wright

On the Orthoceratiles, Wright

Subterraneous Trees, Borlase ,

Peat-pit near Newbury, Collet

Examination of Platina, Lewis



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