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XXXIII. Observations of the Summer Solstice, 1813, with the Mural Circle, at the Royal Observatory. By John Pond, Esq. Astronomer Royal, F. R. S.

Read July 8, 1813.

Equations for Zenith Distance.

Semidiameter of the by Nautical Almanack.

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Mean Obliquity

28 0 59.5 66 32 21,0 10,5

28 0 49,0 66 32 10,5

23 27 49,5|

* Mean Obliquity at Summer Solstice, 1812 23 27 50,5

Mean of Two Observations or Mean Obliquity, Jan. 1, 1813

23 27 50,0

I avail myself of this opportunity of correcting a very small error that was made in computing the summer solstice of 1812. The correction for the sun's latitude should have been o",6 instead of o",9, and should have been applied with the contrary sign. The obliquity thus corrected will be 23° 27′ 50′′,5.

Reduction to the Solstice.

Solstitial Zenith Distance with Parallax.

Solstitial N. P. D. with Parallax.

Correction for 's Lat.

Solstitial Zenith Distance

corrected for 's Lat.

[304]

Solstitial N. P. D. corrected

for O's Lat.

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Nov. 5. A Description of the Collection of ancient Marbles in the British Museum with Engravings. Part I. London, 1812.

DONORS.

The Trustees of the British Museum.

A Treatise on Theatres, by George Saunders. Mr. George Saunders.
London, 1790.

Tracts on Mathematical and Philosophical Sub-
jects, by Charles Hutton, LL. D. and F. R. S.
London, 1812. 3 Vols.
The Elements of Botany, or Outlines of the Natu-
ral History of Vegetables, by Benjamin Smith
Barton, M. D. Philadelphia, 1812. 8°
Elements of Chemical Philosophy, by Sir Hum-
phry Davy. Part I. Vol. I. London, 1812. 8°
Essai sur la Rage, par M. J. F. A. Lalouette. 8°
Institutions de Physique, par B. G. Sage. Paris,
1811. 3 Vols.

80

Of the Circle and the infinite Incommensurability
of its Area to the Square of its Diameter, with
a Demonstration of Dr. Matthew Stewart's 42d
Proposition, by James Glennie, Esq. F. R. S.

Dr. Charles Hutton.

Dr. Benj. Smith Barton.

Sir Humphry Davy.

Mr. J. F. A. Lalouette.
Mr. B. G. Sage.

James Glennie, Esq.

The Speech of His Royal Highness the Duke of The Editor.
Sussex in the House of Lords, April 21, 1812.

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1813.

PRESENTS.

DONORS.

Nov. 5. Observations on Dr. Sturges Pamphlet respecting T. B. Howell, Esq.
Non-residence of the Clergy, in a Letter from
T. B. Howell, Esq. to Mr. Baron Maseres.
London, 1803.

8.

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A Journal of Natural Philosophy, Chemistry, and
the Arts. No. 148 to 152.
The European Magazine from January to Octo-
ber, 1812.

12. A Catalogue of the Archiepiscopal Manuscripts
in the Library at Lambeth Palace, with an
Account of the Archiepiscopal Registers and
other Records there preserved.
fol.
Illustrations of the Lotus of Antiquity, by R.
Duppa, LL.B. London, 1813.

Kong Vetenskaps Academiens nya Handlingar,
Tom. XXX, XXXI, XXXII, for the Years
1809, 1810, and 18.1.

A Sermon preached before the incorporated So-
ciety for the Propagation of the Gospel in
Foreign Parts, Feb. 1, 1812, by Samuel Lord
Bishop of Carlisle. London, 1812.

Mr. W. Nicholson.

The Editor.

The Archbishop of Canterbury.

R. Duppa, Esq.

The Royal Academy of
Sciences of Stockholm.

The Bishop of Carlisle.

Mr. A. E. Tartra.

Mr. G. A. Marechal.

De l'Opération de la Cataracte, par A. E. Tartra.
Paris, 1812.

Quelques Idées nouvelles sur le Système de l'Uni-
vers, par Guil. Ant. Marechal Paris, 1810. 8°
Mon Opinion sur la Formation des Aerolithes, par
Guil. Ant. Marechal. Paris, 1812.

19. Abstract of Answers and Returns made pursuant
to an Act (51 George III.) for taking an Ac-
count of the Population of Great Britain, and
of the Increase and Diminution thereof, 1811.
fol.
Comparaison des Organes de la Mastication des
Orthopterès, par M. Marcel de Serres.
De l'Odorat et des Organes qui paroissent en être
le Siége chez les Orthoptères, par M. Marcel
de Serres.

The Speaker of the House of Commons.

Mr. Marcel de Serres.


Supplement aux Institutions de Physique, par
B. G. Sage. Paris, 1812.
Flora Lapponica, Auctore Geor. Wahlenberg. Mr. G. Wahlenberg.
Berlin, 1812.

Mr. B. G. Sage.

80

80

A Journal of Natural Philosophy, Chemistry, and
the Arts. No. 153.

Dec. 15. A Journal of Natural Philosophy, Chemistry, and

the Arts. No. 154.

The Philosophical Magazine for November.

The Critical Review for November.

The European Magazine for November.

Mr. W. Nicholson.

Mr. A. Tilloch.
The Proprietor.
The Editor.

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Dec. 17. Sui Mezzi immediate di estirpare la Povertà in
Sicilia, per D. Giuseppe Emmanuale Ortolani.
Palermo, 1812.


24. Reports from the Commissioners of Public Re-
cords, with an Account of their Proceedings
from 1800 to 1812.

fol.

Rotuli Hundredorum Temp Hen. IlI. et Edw. I.
In Turr. Lond, et in Curia Receptæ Scaccarii
Westm. asservati. Vol. I.
fol.
Inquisitionum ad Capeilam Domini Regis retor-
natarum quæ in publicis Archivis Scotia adhuc
servantur Abbreviatio. Vol. I. II.
fol.
A Catalogue of the Harleian Manuscripts in
the British Museum, with Indexes of Persons,
Places, and Matters. Vol. IV.
fol.

1813.
Jan. 14. The Critical Review, for December, 1812.
A Journal of Natural Philosophy, Chemistry, and
the Arts. No. 154.

The Philosophical Magazine for December, 1812.
Annals of Philosophy, No. 1.

The European Magazine for December, 1812.
28. Fauna Orcadensis, or the Natural History of the
Quadrupeds, Birds, Reptiles, and Fishes of
Orkney and Shetland, by the Rev. Geo. Low,
&c. Edinburgh, 1813.
40.
Medico-Chirurgical Transactions, published by
the Medical and Chirurgical Society of London.
Vol. III. London, 1812.

Transactions of the Society instituted at London

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DONORS.

Mr. Jos. Emmanuel Ortolani.

The Commissioners of

Public Records.

The Proprietor.
Mr. W. Nicholson.

Mr. A. Tilloch.

Dr. Thomas Thomson.
The Editor.

Dr. Wm. Elford Leach.

The Medical and Chirurgical Society of London.

Society for the Encou

ragement of Arts, Manufactures and Commerce.

Feb. 4. Physiological Reflections on the destructive Ope- Thomas Forster, Esq.

ration of spirituous and fermented Liquors on

the Animal System, by Thomas Forster. Lon-
don, 1812.

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11. A Voyage to the South Seas, undertaken by Com. Rear Admiral Bligh.

mand of His Majesty for the Purpose of con.
veying the Bread Fruit Tree to the West Indies
in His Majesty's Ship Bounty, commanded by
Lieut. Wm. Bligh. London, 1792. 4°

A Chart for the Purpose of exhibiting the Tract
of His Majesty's Ship Director, in a Voyage to
St. Helena and return to England, by Capt.
Wm. Bligh, 1800, 1 Sheet.
MDCCCXIII.
Ss

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Feb. 25. A Survey of the Bay of Dublin, by Capt. Wm.

Bligh, 1803. 2 Sheets.

Chart of the Peninsula and Islands beyond the

River Ganges, by James Horsburgh, Esq. 1813.
I Sheet.

DONORS.

Rear Admiral Bligh.

James Horsburgh, Esq.

Mar. 4. An Introduction to Medical Literature, including Dr. Young.
a System of practical Nosology, by Thomas
Young, M. D. &c. London, 1813.

The Critical Review for February.

8.

A Journal of Natural Philosophy, Chemistry, and
the Arts. No. 158.

Annals of Philosophy, No. 3.

The Philosophical Magazine for February.
The European Magazine for February.

Mar. 11. Appendix to the Doctrine of Life Annuities and
Assurances, containing a Paper read before the
Royal Society on a new Method of calculating
the Value of Life Annuities, by Francis Baily.
London, 1813.

Apr. 1. An Examination of the Imposture of Ann Moore,
called the Fasting Woman of Tutbury, illus.
trated by Remarks on other Cases of real and
pretended Abstinence, by Alexander Hender-
son, M. D. London, 1813.
Bibliothecæ quam vir doctus et admodum reve-
rendus Daniel Williams, S. T. P. bono publico
legavit Catalogus. Londini, 1801.

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A Journal of Natural Philosophy, Chemistry, and
the Arts. No. 159.

Annals of Philosophy, No. 4.

The Philosophical Magazine for March.
The Critical Review for March.

8. Transactions of the Royal Society of Edinburgh.
Vol. VI. Part II. Edinburgh, 1809.

29. An Account of what appeared on opening the
Coffin of King Charles I. in the Vault of King
Henry VIII. in St. George's Chapel at Wind-
sor, on the 1st of April, 1813, by Sir Henry
Halford, Bart. F. R. S. London, 1813.
Bija Ganita, or the Algebra of the Hindus, by
Edward Strachey, Esq.

Anatomy of the Heart, Cranium, and Brain,
adapted to the Purposes of the medical and
surgical Practitioner, and Observations on the
Laws of Life and Sensation, by Alex. Ramsay,
M. D. 2d Edition. Edinburgh, 1813. 4°
A Series of Plates of the Heart, Cranium, and
Brain, in Imitation of Dissections, by Alexander
Ramsay, M. D. 2d Edition.
zd Edition. Edinburgh,

1813.

The Proprietor.

Mr. W. Nicholson.

Dr. Thomas Thomson.
Mr. A. Tilloch.
The Editor.
Francis Baily, Esq.

Dr. Henderson.

The Trustees of Dr. D.
Williams's Library.

Mr. W. Nicholson.

Dr. Thomas Thomson.
Mr. A. Tilloch.
The Proprietor.
The Royal Society of
Edinburgh.

Sir Henry Halford, Bart.

Edward Strachey, Esq.

Dr. Alex. Ramsay.

A Treatise on new Philosophical Instruments for Dr. David Brewster.
various Purposes in the Arts and Sciences, with

Experiments on Light and Colours, by David
Brewster, LL. D. &c. Edinburgh, 1813. 8.

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