86│ 96│ 92│ 88│ 85│ 81│ 77│ 74│ 70│ 67│ 63│ 60│ 57│ 54│ 51│ 48│ 45│ 42 88│ 96│ 92│ 88│ 85│ 81│ 78│ 74│ 71│ 67│ 64│ 61│ 58│ 55│ 52│ 49│ 46│ 43 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 90│ 96│ 92│ 89│ 85│ 81│ 78│ 75│ 71│ 68│ 65│ 62│ 59│ 56│ 53│ 50│ 47│ 44 92│ 96│ 92│ 89│ 85│ 82│ 78│ 75│ 72│ 69│ 65│ 62│ 59│ 57│ 54│ 51│ 48│ 45 94│ 96│ 93│ 89│ 86│ 82│ 79│ 75│ 72│ 69│ 66│ 63│ 60│ 57│ 54│ 52│ 49│ 46 96│ 96│ 93│ 89│ 86│ 82│ 79│ 76│ 73│ 70│ 67│ 64│ 61│ 58│ 55│ 53│ 50│ 47 98│ 96│ 93│ 89│ 86│ 83│ 79│ 76│ 73│ 70│ 67│ 64│ 61│ 59│ 56│ 53│ 51│ 48 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 100│ 96│ 93│ 90│ 86│ 83│ 80│ 77│ 74│ 71│ 68│ 65│ 62│ 59│ 57│ 54│ 52│ 49 ─────┴───┴───┴───┴───┴───┴───┴───┴───┴───┴────┴────┴────┴────┴────┴────┴────┴──── [Illustration: _Courtesy Taylor Instrument Companies, Rochester, N.Y._ Fig. 47 Like the hygrometer, this instrument measures the “relative humidity.” ] [Illustration: Fig. 48 GILBERT HYGROMETER ] GENERAL BAROMETER INDICATIONS A gradual but steady rise indicates settled fair weather. A gradual but steady fall indicates unsettled or wet weather. A very slow rise from a low point is usually associated with high winds and dry weather. A rapid rise indicates clear weather with high winds. A very slow fall from a high point is usually connected with wet and unpleasant weather without much wind. The following table of the United States Weather Bureau gives a summary of the wind and barometer indications: Barometer Reduced to Sea Level Wind Character of Weather Indicated Direction