38 
III.— Tahlea. 
Temperature Comparisons of the \2fli and IWt leifh the \lth 
and ISth {Bootham returns) are rather striking :— 
DAY. 
MEAN OF MAX. 
AXD MIX. 
MEAN OF 8 a.m. 
AXD 8 p.m. 
GROUND 1 
MIX. 
12 
59 io 
00® 
38® 
13 
62« 
59® 
42® 
17 
35^^o 
38® 
24® 
' IS 
37*« 
37® 
21® 
Extreme 
differences. 
26|o 
22® 
21® ! 
The divergence on the hot days between the middle 
columns is noteworthy ; also the reverse divergence 
on the coldest day. The former had 9-8 and 12*5, 
the latter only 2-4 hours of bright sunshine ; there 
were 11-8 on the 18th. 
WEATHEE OBSERVATIONS, MAY 1891, 
BOOTHAM SCHOOL, YORK. 
DAY. 
THERMOMI 
MAX. 
MIX. 
8 a 
.m. 
8 p 
DRY. 
M'ET 
DRY. 
11 
68 
46 
57 
52 
49 
12 
77 
42 
56 
52 
58 
13 
77 
47 
62 
55 
56 
14 
62 
46 
56 
49 
49 
15 
1 
53 
40 
48 
44 
45 
' 16 
47 
37 
42 
38 
37 
' 17 
43 
28 
40 
36 
36 
18 
51 
24 
:^8 
36 
40 
19 
55 
31 
48 
43 
49 
20 
59 
36 
48 
44 
46 
! 21 
oO 
40 
50 
48 
46 
WET 
44 
00 
o3 
46 
41 : 
3o 
35 
36 i 
I 
45 I 
44 
45 ' 
SOL VH 
MAX. 
103 
103 
107 
102 
86 
86 
65 
91 
89 
91 
60 
GRASS 
MIX, 
4o 
38 
42 
aeedle 
stuclc 
37 
35 
24 
21 
26 
32 
38 
M'IND 
, 8 a.m. 
BRIGHT 
SUX. 
' RAIX- 
BAXD 
0 — 5 
; 
KAIN*. 1 
1 
. 
E. 
9-8 
0 
1 
_ 1 
^Y. 
12-5 
1 
— 
W. 
1L6 
1 
— 
s. wc 
6-8 
1 
1 
w. 
6'5 
1 
0-22 
X. 
8-9 
0 
1 
s.w. 
2-4 
1 
0-22 
N.E. 
11-8 
0 
1 
^Y. 
5-9 
0 
0-01 ! 
S.W. 
7-8 
1 
0 06 ! 
E. 
O 
o 
1 
0-10 ; 
1 
1 
It is noteworthy that especially on the 17th the Eain- 
band gave little indication of the coming storms, 
since the amount of water vapour was obviously 
