Item #003567 Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197. Matthew FLINDERS.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.
Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.

Concerning the differences in the magnetic needle, on board the investigator, arising from an alteration in the direction of the ship's head. By Matthew Flinders, Esq. Commander of His Majesty's Ship Investigator. In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. In: Philosophical Transactions of the Royal Society of London for the Year 1805, Vol. 95, part II, pp. 186-197.

London: W. Bulmer and Co., 1805.

1st Edition. Soft cover. Very Good. Item #003567

Entire volume, parts I + II offered. 4to (295 x 235 mm). vi, [2], 1-175 [1], 27 [1]; iv, 177-353 [1], [6] pp., part titles, index bound at end, and 9 engraved plates (2 folding). Original blue simple paper wrappers, pages untrimmed and unopened (wrappers soiled and spotted, spine repaired with the original paper). Protected in custom made clamshell box. Text and plates generally crisp with only very little age-toning, some dust soiling mostly to edges and outer margins, occasional edge fraying and dog-earing. Provenance: Benjamin Hyett Esq. (signature on front wrappers). A fine, unsophisticated copy in original wrappers, in this state rarely found on the market. ----

FIRST EDITION. "In the years 1801 and 1802, while Capt. Flinders, on board the Investigator, was surveying the south coast of New Holland, he observed a difference in the direction of the magnetic needle, for which there appeared no other cause than that of the ship's head being in a different direction. The compasses made use of on board the above mentioned ship were of Walker's construction, one excepted, which was made by Adams; and it appears, from a table of observations given by Capt. Flinders, that some of the variations here treated of were 4° less, and others 4° greater than the truth. It also appears, that when this error was to the west, the ship's head was to the east, or nearly so; when the error was eastward, the ship's head was in a contrary direction; and when the observations agree best with those taken on shore, which may be considered as having the true variation, the ship's head was nearly north or south. A minute inspection of the table seems to favour the opinion, that the excess or diminution of the variation was generally in proportion to the inclination of the ship's head, from the magnetic meridian, on either side. Capt. Flinders, having ascertained the certainty of a difference in the compass, arising from an alteration in the point steered, thought it necessary, when he wanted a set of bearings from a point where the ship tacked, to take one set just before and another immediately after that operation. Several specimens of the manner in which these bearings were taken are given; also a specimen of the plan he followed in protracting such bearings: these specimens are in the form of tables, and are not of a nature to be abridged." (Proceedings of the Royal Society of London, 1832, vol. 1). - Visit our website to see more images!

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