1892-93.] Mr Aifcken on Hazing Effect of Atmosffieric Dust. 93 
Table No. III. 
Shoiving the Lowest and Highest Limits of Visibility observed, at 
FalMrh for Winds from the Principal Directions and at 
Different Degrees of Dryness. 
'o 
.2 2 
Extreme Limits of Visibility in Miles for Different Wet Bulb Depressions. 
5 
2° 
3“ 
4“ 
5° 
6° 
7° 
8° 
N. 
120 to 200 
N.E. 
25 to 40 
25 to 50 
35 „ 50 
E. 
4 ,, 15 
5 to 8 
12,, 25 
6 „ 50 
12 to 15 
12 to 50 
S.E. 
12 „ 17 
15 „ 30 
S. 
8 10 
12 „ 20 
12 „ 25 
30 to 30 
12 ,, 30 
15 ,, 50 
s.w. 
2„ 12 
5,V 3.0 
5,, 20 
6 ,, 25 
8 ,, 15 
12 „ 50 
12 „ 60 
w. 
20 „ 60 
30 ,, 250 
75 ,, 200 
50 „ 200 
50 ,, 250 
120 „ 150,60 ,, 250 
N.W. 
70 „ 100 
50 „ 250 
250 ,, 250 
Table No. IV. 
Shoiving the Mean Limit of Visibility of the Air in Miles at 
Falkii'k for Winds from Different Directions^ and for each In- 
crease of 2 Degrees in the Wet Bidb Depression. 
Direction 
2“ 
3° and 4° 
5° and 6° 
7° and 8“ 
of 
Wind. 
Number 
Limit 
Number 
Limit 
Number 
Limit 
Number 
Limit 
of Obser- 
of Visi- 
of Obser- 
of Visi- 
of Obser- 
of Visi- 
of Obser- 
of Visi- 
vations. 
bility. 
vations. 
bility. 
vations. 
bility. 
vations. 
bility. 
N. 
1 
80 
2 
160 
1 
250 
N.N.E. 
2 
50 
N.E. 
3 
32 
5 
33 
2 
30 
E.N.E. 
3 
33 
E. 
3 
16 
9 
12 
3 
17 
6 
19 
E.S.E. 
S.E. 
3 
14 
2 
22 
S.S.E. 
3 
12 
1 
12 
2 
15 
S. 
*3 
"6 
5 
15 
6 
21 
6 
25 
s.s.w. 
4 
6 
10 
11 
6 
13 
2 
45 
s.w. 
8 
7 
19 
14 
11 
13 
7 
21 
w.s.w. 
1 
4 
3 
25 
2 
33 
1 
50 
w. 
6 
50 
18 
116 
12 
133 
8 
156 
W.N.W. 
... 
1 
150 
N.W. 
*3 
123 
6 
175 
2 
250 
