184 
KANSAS CITY REVIEW OF SCIENCE. 
The usual summary by decades is given below. 
Temperature of the Air, 
MiN. AND Max, Averages. 
Min 
Max 
Min. and Max 
Range 
Tri-Daily Observations. 
7 a. m 
2 p. m 
9 P- m 
Mean 
Relative Humidity. 
7 a. m 
2 p. m 
9 P- m 
Mean 
Pressure as Observed. 
7 a. m 
2 p. m , 
9 P- m 
Mean 
Miles per Hour of Wind, 
7 a. m 
2 p. m 
9 p. m- • • 
Total miles 
Clouding by Tenths. 
7 a. m 
2 p. m. . . 
9 P- m 
Rain. 
Inches 
May 20th 
to 31st. 
54-6 
70.7 
60.6 
61.9 
.907 
.718 
.691 
.771 
28.95 
29.05 
28.94 
16.0 
20.1 
12.4 
3785 
3-2 
4.3 
5-5 
2.70 
June 1st 
to loth. 
62,2 
77.1 
64-3 
67-3 
.769 
,920 
.880 
28.94 
28.91 
28.93 
2893 
8-5 
15-3 
9.9 
2736 
6.2 
4.6 
5-2 
2.38 
June loth 
to 20th. 
69.6 
83.0 
72.6 
74.1 
.909 
•739 
.861 
•833 
28.92 
28.90 
28.82 
28.91 
16.2 
14.0 
13.4 
3639 
3-9 
6.0 
4.0 
2.52 
Mean. 
62.1 
76.9 
65.8 
68.2 
.92 
•74 
.82 
•83 
28.94 
28.95 
28.90 
28.93 
13-6 
14.8 
119 
10160 
4.4 
4.9 
7.60 
ANTI-CYCLONIC STORMS. 
PLINY EARLE chase, LL.D. 
The science of meteorology may, for many good reasons, be regarded as a 
peculiarly American science. William Ferrel's discussion of the motion of fluids 
and solids relative to the earth's surface, which was first published in the summer 
of 1856, placed the laws of cyclonism and anticyclonism on a solid mathematical 
basis. He showed that, in the northern hemisphere, all moving bodies are con- 
stantly subjected, in consequence of the earth's rotation, to a deflection towards 
the right hand. Hence all atmospheric surface currents which are mainly gov- 
erned by a downward pressure, tend to curve in the direction of the hands of a 
watch, or successively through north, east, south, west. All surface currents 
which are mainly governed by an upward pressure, tend to flow in an opposite 
direction, or through north, west, south, east,i The heavy winds are called 
anticyclonic ; the light winds, cyclonic. 
1 This will be evident, if we imagine ourselves to be lying in the current and facing the^ 
direction toward which the pressure tends. 
