117 
And the mean results of the two experiments were : — 
Arnfield 
W. ^ L. 
... 5-7 7-0 
Hollingworth 
... 4-5 6-6 
July 2 and 9. 
Experiments were made 
on both these days, but the 
atmosphere was hazy and rain fell, and none of the papers 
were coloured. 
July 10- 
-AENFIELD. 
Three papers, exposed in 
each box from 2.20 to 7.20 p.m.; 
but at 4.45 it was noticed that the wind had changed and 
the boxes were removed into fresh positions. The height 
of the jet was only 11 feet. 
The tints were 
W. 
L. 
50 
4-2 
4*5 
6*0 
4-5 
5-5 
Mean = 4’66 
Mean = 5*23 
July 11- 
-ARNFIELD. 
Three papers in each box exposed from 9.30 to 11.40 
a.m. ; height of jet about 16 feet ; very cloudy, but the air 
pretty clear. 
W. 
L. 
4-0 
5‘5 
8‘5 
5-0 
40 
4-0 -b 
3-83 
4*83 
At 11.50 a.m. one paper was left in each box, and at 4.50 
p.m. the tints were — = 
w. L. 
3*5 5-0 
The weather was showery, and the wind oscillated 
between W.S.W. and W.N.W. 
At 7.0 p.m. two papers were left in each box, and at 8.0 
the following morning one paper was taken from each box, 
and the shades of colour were found to be — ■ 
w. L. 
2*0 3-0 
