A Manual of Scientific Enquiry: Prepared for the Use of Officers in Her Majesty's Navy; and Travellers in General |
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Page 2
... described . It is de- sirable that the navigator should be possessed of some star - maps or star - charts , by means of which he will be able at once to give the proper names to the stars , and much confusion and loss of time will be ...
... described . It is de- sirable that the navigator should be possessed of some star - maps or star - charts , by means of which he will be able at once to give the proper names to the stars , and much confusion and loss of time will be ...
Page 16
... described , the values of either force . may be rately ascertained . The influence of the magnetism of the magnet , and of its form and weight , being thus eliminated , a measure is finally obtained of the force of the Earth's magnetism ...
... described , the values of either force . may be rately ascertained . The influence of the magnetism of the magnet , and of its form and weight , being thus eliminated , a measure is finally obtained of the force of the Earth's magnetism ...
Page 25
... at the spot selected for it . This completes the preparations to be made before the ship's departure . Whilst at sea , the observations of dip and intensity described in Appendix No. 2 , Sect . II . ] 25 TERRESTRIAL MAGNETISM .
... at the spot selected for it . This completes the preparations to be made before the ship's departure . Whilst at sea , the observations of dip and intensity described in Appendix No. 2 , Sect . II . ] 25 TERRESTRIAL MAGNETISM .
Page 26
... described in Appendix No. 2 , as well as those of the variation by the standard compass , should be made daily , whenever the weather and other circumstances permit . Whenever the ship is in har- bour , and time and opportunities are ...
... described in Appendix No. 2 , as well as those of the variation by the standard compass , should be made daily , whenever the weather and other circumstances permit . Whenever the ship is in har- bour , and time and opportunities are ...
Page 38
... described will complete a single determination . There should be three such determinations with each of the 3.67 - inch magnets at a base station ; and all should not be made on the same day , lest it should happen to be a day on which ...
... described will complete a single determination . There should be three such determinations with each of the 3.67 - inch magnets at a base station ; and all should not be made on the same day , lest it should happen to be a day on which ...
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actinometer afford algæ altitude angles animals ascer ascertained atmospheric waves Auriga barometer Cape Horn carefully centre character coast collected colour column corals correct crystals deflection deflector depth desirable determined direction distance earth Engl especially Fcap fissures fossil geology head height high water horizontal igneous rocks important inches inclination inquiry instrument islands kind known land latitude longitude low water lunitidal interval means measure mercury meridian minerals minute mode moon's transit nature navigation needle North noted objects observations obtained occur ocean particular phenomena plants Plates port portion Portrait position Post 8vo preserved quadrupeds racter reefs remarks rivers rocks Second Edition sextant shells ship shore skin sound specific gravity specimens stream substances surface taken temperature thermometer Third Edition three-hourly tide tide-wave tion tribe tube vertical vessels vibration Vols voyage WASHINGTON IRVING wave wind Woodcuts
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Page v - It is the opinion of the Lords Commissioners of the Admiralty, that it would be to the honour and advantage of the Navy, and conduce to the general interests of science, if new facilities and encouragement were given to the collection of information upon scientific subjects by the officers, and more particularly by the medical officers, of Her Majesty's Navy, when upon foreign service...
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Page 283 - It happens fortunately that almost every datum which the scientific meteorologist can require is furnished in its best and most available state by that definite, systematic process known as the " keeping a meteorological register" which consists in noting at stated hours of every day the readings of all the meteorological instruments at command, as well as all such facts or indications of wind and weather as are susceptible of being definitely described and estimated without instrumental aid. Occasional...
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Page 122 - Mistakes and errors have often been produced in tide observations by supposing that the turn of the tide stream is the time of high water. But this is not so. The turn of the stream generally takes place at a different time from high water, except at the head of a bay or creek. The stream of flood commonly runs for some time, often for hours, after the time of high water. In the same way, the stream of ebb runs for some time after low water.
Page 291 - ... no risk of change. The next correction, and the most important of all, is that due to the temperature of the Mercury in the Barometer tube at the time of observation. To obtain this, every Barometer requires to have attached to...
Page 4 - Voyages of Discovery and Research within the Arctic Regions, from 1818 to the present time. Under the Command of the several Naval Officers, employed by Sea and Land, in search of a North-west Passage from the Atlantic to the Pacific : with Two Attempts to reach the North Pole. Abridged and arranged from the Official Narratives, with Occasional Remarks.