GENERAL RESULTS OF THE MAGNETICAL OBSERVATIONS. Xxi 
mum thermometer about 5" p.m. Now, although it is probable that the coldest 
portion of a civil day will have occurred between 12 o’clock of the previous 
evening and 10 a.m., when the minimum thermometer is read, yet it may not 
be so, for the weather may grow suddenly colder after 10 a.m., and the mean of 
the day, as calculated from the temperature observations, may even prove lower 
than the reading of the minimum thermometer. 
The anemometer being an instrument which, by means of an index, registers 
the greatest force of the wind between two consecutive observation hours, we are 
thus enabled to find the maximum force of wind for the day, which is given in the 
15th column. Here, as the instrument is reset every observation hour, it was 
necessary to examine the observations contained in the “Kelso Mail” for the 
years 1851-55. 
The mean force of wind noted in the next column is the mean of the present 
pressures of the wind at the different observation hours, these hours being the 
same as those for which the direction of the wind is noted in the last column. 
GENERAL RESULTS OF THE MAGNETICAL OBSERVATIONS. 
Magnetic Declination. 
_ The following Table contains the corrections that have been applied to the | 
means of the observed readings of the declinometer, in order to get the mean of the 
day. (These corrections have been deduced from hourly observations made during 
1844 and 1845) :— 
TABLE 1.—Correction for Mean of Observation Hours. 
Month 2h, Bh, Bh 23%, 58, Oh 5h," 
GM. Sei G.M. 7. 
PenianyA Ac ety ahelan 1-08 —155 —1-62 
Hebruary, coh) a). —0:96 —1:33 —1°55 
March? 74ers — 1°35 —1:49 —201 
April Sleep eita & —1-26 —1-84 —1:92 
DEY. sae ashes —1:14 —2:01 —1-44 
ine, Se —1-07 Sie ~ 1-29 
Tilys) se ea | tees —1-10 — 1:86 ~1:42 
amish. pelo os S| —2:10 —2-03 
Septemberns) 2). —1:24 —1'83 —2:13 
Octoberware es —1:39 —1:48 —1-95 
INovemberyurs 204. 6 —1:01 —1:65 — 1:87 
Decembery a. << — 0°83 —0°81 —1:20 
