A Manual of Scientific Enquiry: Prepared for the Use of Officers in Her Majesty's Navy; and Travellers in GeneralJ. Murray, 1851 - 503 Seiten |
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Seite 58
... depths to which these tem- peratures extend ; and record all appearances and changes which may appear of interest or seem to be useful to those who may follow over the same ground . To detect the motion of the stream the remarks in Art ...
... depths to which these tem- peratures extend ; and record all appearances and changes which may appear of interest or seem to be useful to those who may follow over the same ground . To detect the motion of the stream the remarks in Art ...
Seite 60
... depth to which the weight be sunk , the better . Bottles thrown overboard with a label inside , containing the date and lat . and long . of the spot where cast into the sea , afford ready means of detecting the current if picked up ...
... depth to which the weight be sunk , the better . Bottles thrown overboard with a label inside , containing the date and lat . and long . of the spot where cast into the sea , afford ready means of detecting the current if picked up ...
Seite 67
... depth of the water and the nature of the bottom are all important ; and in all descriptions of a coast , as well as ... depths reduced to low - water spring- tides if possible , and always give the least water upon * See page 79 , Art ...
... depth of the water and the nature of the bottom are all important ; and in all descriptions of a coast , as well as ... depths reduced to low - water spring- tides if possible , and always give the least water upon * See page 79 , Art ...
Seite 70
... depth of the water , nature of the ground , and whether any precautions are necessary with respect to protecting the cables if hempen , and whether it be proper to moor in conse- quence of the difficulty of keeping a clear anchor , or ...
... depth of the water , nature of the ground , and whether any precautions are necessary with respect to protecting the cables if hempen , and whether it be proper to moor in conse- quence of the difficulty of keeping a clear anchor , or ...
Seite 75
... depth ; and at given short intervals note the time and fix the posi- tion of the boat by two angles as before mentioned , * as also whenever there is any material alteration in the depth , or whenever the number of casts alters in a ...
... depth ; and at given short intervals note the time and fix the posi- tion of the boat by two angles as before mentioned , * as also whenever there is any material alteration in the depth , or whenever the number of casts alters in a ...
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A Manual of Scientific Enquiry: Prepared for the Use of Her Majesty's Navy ... John Frederick William Herschel Eingeschränkte Leseprobe - 2011 |
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Beliebte Passagen
Seite 20 - MAWE'S (HL) Journal of a Passage from the Pacific to the Atlantic, crossing the Andes in the Northern Provinces of Peru, and descending the great River Maranon.
Seite 22 - NEALE'S (EV) Feasts and Fasts: an Essay on the Rise, Progress, and Present State of the Laws relating to Sundays and other Holidays, &c. Fcap.
Seite 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...
Seite 26 - LEXINGTON (THE) PAPERS ; or, Some Account of the Courts of London and Vienna at the end of the 17th Century. Extracted from the Official and Private Correspondence of ROBERT SUTTON (LORD LEXINGTON) while Minister at Vienna.
Seite 4 - JOHN) Autobiographical Memoir, including Reflections, Observations, and Reminiscences at Home and Abroad* From Early Life to Advanced Age. Portrait. 8vo. 16».
Seite 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...
Seite 19 - Spain under Charles the Second; or, Extracts from the Correspondence of the Hon. ALEXANDER STANHOPE, British Minister at Madrid from 1690 to 1700. Second Edition. Post 8vo. 6s. 6d. Life of Louis Prince of Condg, surnamed the Great. Post 8vo. 6s. Life of Belisarius. Second Edition. Post 8vo. 10s. 6d. Historical and Critical Essays. Post 8vo. 6».
Seite 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.
Seite 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...
Seite 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.