180 Proceedings of the Royal Society of Edinburgh. [Sess. 
Table comparing the Action of the Stevenson Screen with that of 
Aitken’s Screen C, etc. 
Date. 
Wind. 
Steven- 
son. 
C. 
Differ- 
ence. 
R.B. 
B.B. 
Weather. 
Aug. 17 
SW -5 
737 
72-0 
1-7 
130*1 
123*5 
Fine, sunny, strong SW 
18 
SSW 1 - 
66-8 
65-4 
1*4 
117*0 
119*0 
Cloud and sun, strong SW 
19 
SW l* 
67-7 
66-0 
1-7 
130*6 
124*8 
Cloudy to fine, SW 2 
20 
Calm 
65-8 
64-0 
1-8 
120*5 
117*0 
Variable, showery, WSW 1 * 
21 
SW T 
6T9 
59-6 
23 
121*5 
118*0 
Cloud v to fine, SW 2 * 
22 
SW '5 
65-8 
63*9 
1*9 
127*2 
117*6 
„ * „ SW 3* 
23 
SW -2 
64*8 
63-0 
1*8 
124*0 
117*4 
„ „ WSW *5 
>? 
24 
Calm 
66-7 
62-4 
43 
138*7 
121*0 
„ „ calm 
£5 
‘ E -1 
54-3 
54-0 
0-3 
67*0 
69*0 
Light drizzle all day, ENE *2 
26 
Calm 
60'0 
59-4 
0-6 
84*5 
86*8 
Variable, SW *2 
27 
NNW -5 
59-6 
58*4 
1-2 
103*0 
110*0 j 
„ , little sun, WSW 1 * 
28 
Calm 
54*7 
533 
1*4 
89*2 ! 
80*0 
Cloudy, calm 
29 
WSW -5 
62-9 
60-5 
1-4 
123*0 
117*0 
Cloudy to fine, WNW 1 * 
30 
SW 1 - 
60*2 
58-3 
1*9 
113*0 
113*0 
„ „ W *5 
31 
N *5 
62*9 
60T 
2*8 
131*8 
122*0 
„ „ w 1 * 
Sept. 
5 
S -5 
72-0 
70-0 
2-0 
119*5 
118*2 
Fine but stormy, S 
55 
6 
SW -5 
64-8 
63-3 
1-5 
102*0 
114*0 
j Cloudy, SW 1 * 
55 
7 
WSW 1 * 
66-7 
65-0 
1*7 
121*2 
120*0 
1 Fine, SW 1 * 
55 
8 
SW -5 
60-7 
83*2 
81 6 
Dull all day, S *5 
9 
SW -5 
63-9 
63-3 
0*6 
82*4 
78*2 
Dull, SW *5 
55 
10 
SSW 1 - 
69-8 
694 
0-7 
111*2 
117*4 
Fine, SW 1 * 
11 
I Calm 
65-9 
65T 
0-8 
90*0 
85*3 
Dull 
55 
12 
E -2 
50-6 
50*9 
-0-3 
57*0 
59*5 
Very dull, drizzling. Dull till 
eve, E *2 
55 
13 
Calm 
56-4 
564 
o-o 
95*2 
103*0 
Changeable 
14 
55 
64-8 
61T 
37 
115*2 
102*3 
Fine, calm, cloudless 
5 j 
15 
67-8 
645 
3*3 
117*0 
106*2 
Cloudless, SW *2 
Fine but cloudy 
55 
16 
SSW -2 
64-9 
63-6 
1-3 
106*4 
102*5 
33 
17 
SW 1 * 
63-1 
62-8 
0-3 
950 
92*0 
Dull, SW 1 * 
55 
18 
SSW 2 * 
62-6 
61-2 
1-4 
102*6 
105*0 
Showers and stormy 
33 
19 
n r 
52-9 
104*0 
104*0 
Cloudy to fine, SW 
55 
20 
WSW *5 
55*7 
55-0 
o-7 
109*1 
105*5 
Cloudy to fine 
55 
21 
W -2 
59-9 
563 
36 
11.1*3 
107*2 
Fine, sunny, W *2 
33 
22 
S 1 * 
55-6 
55*4 
0*2 
92*2 
60*0 
Raining, stormy 
55 
23 
WSW -2 
58-6 
55-6 
3*0 
113*6 
106 3 
Fine, sunny, W *2 
55 
24 
SW 2 ’ 
58-3 
58-0 
0-3 
78*9 
86*2 
Showery, stormy, SW 
33 
25 
WSW 3* 
596 
59-2 
0*4 
68*2 
79*2 
Drizzling, dull, SSW *4 
33 
26 
SW 1 * 
54*5 
54 - 7 
- 0-2 
94*2 
101*7 
Cloudy, stormy 
55 
27 
W -2 
58-5 
56-0 
2-5 
103 5 
105*0 
Fine, W *2 
55 
28 
Calm 
55-5 
54*0 
1-5 
105*7 
101*0 
Fine a.m., dull p.m. 
35 
29 
SW 1 - 
52*6 
52-7 
-04 
69*5 
63*0 
Dull, drizzling all day 
33 
30 
SSW 1 * 
58*9 
58-2 
0*7 
8(3*6 
87*6 
Dull day 
Oct. 
1 
Calm 
53-5 
53 0 
0-5 
74*5 
71*0 
Dull, drizzling, SW *2 
55 
2 
SW -5 
60*5 
58-7 
1-8 
108*4 
103*0 
Fine, SW 1 * 
55 
3 
SW -5 
58-2 
58-0 
0-2 
67*0 
75*0 
Dull all day, SW *2 
33 
4 
SSW 1 - 
64-8 
64-0 
0-8 
99*5 
104*0 
Hazed sky,* calm 
