118 
At nine a.m. the remaining papers were both No. 4. 
July 15— ARNFIELD. 
Three papers exposed in each box from 2.30 to 4.40 p.m. ; 
height of column of water about 20 feet; wind blowing in 
strong breezes from E.N.E. ; air pretty clear, but sky veiy 
cloudy. The results were : — 
w. L. 
3*5 40 
30 3*5 
2-5 3-5 
Mean = 3-00 Mean = 3*66 
Fresh papers were exposed from 4.50 to 7.5 p.m., with 
the following results : — 
W. 
4*0 
3*5 
3-5 
L. 
40 
4*5 
5*5 
Mean = 3*66 Mean = 4*66 
At 9 p.m. two papers were left in each box, and at 5.0 
the following morning the results were — 
W. L. 
7*5 9*0 
8*0 9*0 
Mean = V* 75 Mean = 9*0 
August 11— ARNFIELD. 
Two papers in each box from 12.30 to 3.30 p.m. ; height 
of jet about 16 feet; temperature of the air at 12.30, 70°.5; 
temperature of evaporation, 63°. 0 ; wind, S.W. to W.S.W. in 
light breezes. 
W. ' L. 
2*5 4*5 
3*5 5*5 
Mean = 3 00 Mean = 5*0 
One paper in each box was afterwards exposed from 4.0 
to 7.0 p.m., when it was observed that the air was becoming 
hazy. 
W. 
2.0 
L. 
3.0 
