-----------------------------+------------------+------------------ | REDUCED TO | REDUCED TO | FREEZING-POINT. | FREEZING-POINT | | AND LAT. 45°. -----------------------------+--------+---------+---------+-------- | MM. | INCHES. | MM. | INCHES. 1898. February 11, at 4 p.m. | 755.82 | 29.757 | 757.11 | 29.808 March 29, at 1 a.m. | 755.35 | 29.739 | 756.95 | 29.802 April 26, at 7 a.m. | 753.80 | 29.678 | 755.37 | 29.739 May 13, at 4 p.m. | 764.28 | 30.090 | 765.90 | 30.154 June 11, at 1 a.m. | 770.48 | 30.334 | 772.14 | 30.400 July 18, at 8 p.m. | 761.53 | 29.983 | 763.10 | 30.044 August 29, at 6 p.m. | 765.43 | 30.135 | 766.99 | 30.197 September 16, at 9 p.m.| 757.77 | 29.834 | 759.31 | 29.894 October 12, at 8 a.m. | 764.80 | 30.111 | 766.35 | 30.172 November 13, at 4 a.m. | 754.05 | 29.688 | 755.58 | 29.748 December 18, at 5 a.m. | 757.65 | 29.829 | 759.20 | 29.890 1899. January 24, at 8 p.m. | 760.76 | 29.951 | 762.33 | 30.013 February 22, at 3 a.m. | 751.63 | 29.593 | 753.17 | 29.653 -----------------------------+--------+---------+---------+-------- Absolute maximum, 772.14 mm. = 30.400 inches. TABLE VI.--MAXIMUM VARIATIONS OF PRESSURE, AND MEANS OF THOSE VARIATIONS. ----------------+----------------+--------- | MM. | INCHES. ----------------+----------------+--------- 1899. February | 33.09 } | 1.303 1898. March | 35.47 } 35.93 | 1.397 April | 39.22 } | 1.544 | | May | 34.12 } | 1.343 June | 37.03 } 33.66 | 1.458 July | 29.82 } | 1.174 | | August | 49.68 } | 1.955 September | 38.54 } 43.68 | 1.518 October | 42.82 } | 1.686 | | November | 22.76 } | 0.897 December | 22.19 } 23.95 | 0.874 1899. January | 26.90 } | 1.059 ----------------+----------------+--------- Mean | 34.30 | 1.350 ----------------+----------------+--------- Extreme range for the year: 772.14--711.74 = 60.40 mm. 30.400--28.022 = 2.378 inches. TABLE VII.--DIFFERENCES OF MONTHLY MEANS OF PRESSURE FROM THE MEAN OF THE YEAR. The + sign indicates pressure greater than the mean, the - sign pressure less than the mean.