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Read Ebook: Barometer and Weather Guide by Fitzroy Robert Compiler
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Ebook has 14 lines and 3248 words, and 1 pages
r middle latitudes, because the air is then exceedingly clear and transparent.
Even in ordinary changes of weather it is interesting, as well as useful, to mark the formation or disappearance of clouds, caused by colder and warmer currents of air mixing: or intermingling.
Depending on pressure and temperature.
Sir James Ross--M. Daussy.
Williwaw of the old sealers and whalers.
Seamen call the light sails, used only in very fine weather, "flying kites."
Herschel.
Dov?.
For a barometer of this kind, Admiral Milne has invented self-registering mechanism, that answers well.
A small turnscrew being applied gently to the screw head at the back. This is often necessary, on receiving or first using an aneroid that has long been lying by, or that has been shaken by travelling.
It is a good weather glass--to be suspended on or near the upper deck, for easy reference;--and is unlikely to be injured by mere concussion of air, or vibration of wood, when guns are fired.
Allowing 0,0011 of an inch for each foot.
The manufacture of these useful auxiliary instruments has increased much latterly: and now the patent has expired. They might be so improved so to be worth more than double their present value.
Like the sun's edge or limb, touching the sea horizon, as seen inverted when using a sextant.
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