Observations Made at the Magnetical and Meteorological Observatory at St. Helena: 2: 1844 to 1849Longman, Brown, Green and Longmans, 1860 - 526 pages |
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0.9 Nearly overcast 1.0 Overcast 16 Rain 1º Faht 22 Rain aggregate values Angular Value Annual Means Astronomical Reckoning August 31 Bar for 1º Barometer at 32 BIFILAR MAGNET Cape cir.-strat Cloudy Sky cum.-strat Daily and Monthly Declinometer disturbances increasing dull exhibits the aggregate Extent of Cloudy H. F. Change Helena 23 Hourly Means hourly observations Hours of Mean increasing the force isoclinal lines July June 30 Lunar Hours lunar-diurnal variation Magnetic moment MAGNETICAL OBSERVATIONS magnetometer Mean Göttin Mean Göttingen Mean hourly value Mean monthly value Mean Solar Mean St mist and rain misty and showery Monthly Means morning nearly calm overcast at night Point Barrow rain at night ratios S.E. by E Scale Division scale readings secular change Sir James Ross Solar Terres solar-diurnal variation strat Sunday TABLE TEMPERATURE Therm THERMOMETER total force VERTICAL FORCE MAGNET Weather and Phenomena westerly deflections westerly disturbances