Barometer manualG.E. Eyre and W. Spottiswoode, 1860 - 22 pages |
Common terms and phrases
air presses appears approach atmosphere attention average barometer becomes begins bulb called causes change of wind clouds column combined coming compared conclusion considerably continuance contracting contrary currents damp dawn difference direction discourage distant dryness effect emptied England expected extreme fair feeling feet fifteen fine weather fixed follow force foretells foretold frequently gale glass half hand heat height higher horizon hundred feet improvement Including increases indications Instances land latitudes less wind light lighter lower mean mercury moisture nearly North North-eastward Northerly observer occur perhaps persons practical preceding quicksilver rain or snow range rarely remaining rising round scales sea level shift shown shows signs sinks sometimes South Southerly stand storm strength strong wind stronger suction surface temperature tending tenths thermometer falls thirty inches tube upper usually veer violent visible ward weather wind or rain
Popular passages
Page 16 - Remarkable clearness of atmosphere near the horizon, distant objects, such as hills, unusually visible, or raised (by refraction), and what is called " a good hearing day," may be mentioned among the signs of wet, if not wind, to be expected.
Page 5 - ... too often overlooked) — that the longer the time between the signs and the change foretold by them, the longer such altered weather will last; and, on the contrary, the less the time...
Page 16 - ... may be mentioned among signs of wet, if not wind, to be expected. , More than usual twinkling of the stars ; indistinctness or apparent multiplication of the moon's horns ; haloes...
Page 12 - Whether clear or cloudy — a rosy sky at sunset presages fine weather : — a red sky in the morning bad weather, or much wind (perhaps rain): — a grey sky in the morning, fine weather :— a high dawn...
Page 15 - ... wind. Misty clouds forming or hanging on heights show wind and rain coming, if they remain, increase, or descend ; if they rise or disperse, the weather will improve, or become fine.
Page 9 - The range or difference of height shown due to change of direction only, from one of these bearings to the other (supposing strength or force and moisture to remain the same), amounts in these latitudes to about half an inch (as read off). 2. The amount— taken by itself — of vapour, moisture, wet, rain, or snow in the wind, or current of air (direction and strength...
Page 9 - SW. may therefore be called the wind's extreme bearings (rather than poles ?). The range, or difference of height shown, due to change of direction only, from one of these bearings to the other (supposing strength or force, and moisture, to remain the same), amounts in these latitudes to about half an inch (as read off). 2. The amount — taken by itself — of vapour...
Page 6 - Indications of approaching changes of weather, and the direction and force of winds, are shown less by the height of the barometer, than by its falling or rising. Nevertheless, a...
Page 13 - Generally, the softer clouds look, the less wind (but perhaps more rain) may be expected ; — and the harder, more " greasy," rolled, tufted, or ragged, — the stronger the coming wind will prove.
Page 13 - high dawn " is when the first indications of daylight are seen above a bank of clouds, A "low dawn" is when the day breaks on or near the horizon, the first streaks of light being very low down.