METEOKOLOGICAL RESULTS OE TUB BUKIT MINYAK OBSERYATORY, FOR THE MONTH OF MAY, 1890. 
5° 22' N. Lat. } 100° 30' K Long 
Barometer reduced 
to 32° 
Date. 
9 H. 
a 
40 
rH 
21 H. 
Mean. 
1 
Ins. 
29*860 
Ins. 
29*735 
Ins. 
29*836 
Ins. 
29*810 
2 
*885 
•741 
•819 
*816 
3 
*932 
*766 
•877 
•858 
4 
•881 
•709 
■774 
•788 
6 
*910 
*699 
•81S 
•809 
* 6 
*864 
•714 
•814 
■797 
7 
*916 
‘696 
•812 
•80s 
8 
*932 
•701 
•822 
•818 
9 
*935 
.719 
•845 
*866 
10 
*954 
.794 
•864 
•870 
11 
•907 
•737 
•830 
*824 
12 
■916 
*709 
•829 
•818 
13 
•948 
*735 
•827 
•836 
14 
•957 
•711 
*856 
•841 
15 
*929 
*737 
•845 
■837 
16 
•903 
•725 
■848 
•824 
17 
■859 
■723 
•828 
■803 
18 
•912 
•711 
•836 
■819 
19 
•952 
•726 
•864 
•840 
20 
.899 
'703 
•795 
■799 
21 
•926 
*728 
•854 
•836 
22 
•955 
*750 
•862 
*855 
23 
•905 
*758 
•855 
•839 
24 
■947 
*714 
•860 
•840 
25 
•950 
*727 
■857 
■844 
26 
•934 
•706 
•848 
•829 
27 
•920 
•703 
•838 
•820 
28 
■901 
*729 
•873 
*834 
29 
•889 
•720 
■816 
‘808 
30 
•885 
•713 
•844 
•804 
31 
•902 
•713 
*858 
•824 
Mean. 
29*915 
29-724 
29-838 
29*826 
Temperature of Air. 
a 
93 
°F. 
80-5 
85 - 5 
88-5 
79*5 
84*5 
78*5 
88*5 
87*6 
86*5 
81 5 
82*5 
84-0 
85*5 
81*5 
7y*u 
810 
8 10 
82*5 
77*0 
80*0 
82*0 
84*5 
81*5 
82*5 
81*5 
82*5 
86*0 
83*5 
86*0 
82*5 
83*5 
83-0 
a 
40 
op 
89*5 
82*6 
84*5 
87*5 
88*0 
88*0 
87*5 
84*6 
87*5 
86*5 
86*5 
87*5 
88*0 
85*5 
85*5 
82-0 
82*0 
81*0 
83*5 
80 6 
88*6 
85*6 
88*0 
87*6 
86*6 
88-5 
87*6 
87*5 
86*6 
85*5 
83*6 
35*9 
a 
<N 
op 
80*5 
78*5 
79*5 
78*5 
80*0 
81*6 
83*0 
78*5 
810 
79*5 
80 0 
81*5 
82*5 
80*6 
81*0 
80 0 
30*5 
76*0 
76*5 
78*0 
80*0 
82*0 
82*0 
80*0 
79*6 
80*0 
81*5 
82 0 
81*5 
80*6 
79*5 
80*1 
a 
S3 
O) 
a 
°F. 
80*7 
79*7 
81*3 
79*5 
81*5 
80*1 
8i*3 
81*0 
82*1 
80*2 
80*5 
81*6 
82*3 
80*1 
79*8 
79*1 
78 7 
77*8 
77*3 
78*0 
80*8 
81*2 
82*1 
el-0 
80*3 
81*2 
82*3 
81-6 
82*1 
80*6 
30*0 
80*6 
1 
M 
C3 
a 
°F. 
91*6 
91*6 
92*5 
91*5 
92*5 
92*5 
91 0 
92*0 
92*5 
92*0 
92*5 
92 0 
92*0 
92*0 
90*0 
90*0 
88*0 
85.0 
89*0 
85 0 
90*0 
89*0 
90*0 
89*0 
90*0 
89*0 
90*6 
90*0 
90*5 
90*0 
89*0 
90*3 
a 
‘H 
£ 
a 
°F 
72*5 
72*5 
73 0 
72*5 
73 5 
726 
74*5 
73*5 
73*5 
73*5 
73*0 
73*5 
73*5 
73*0 
74*0 
73*5 
71*6 
72*0 
72*6 
73 5 
73*0 
73*0 
74*0 
74*0 
74*0 
74*0 
74*5 
735 
74*5 
73 5 
73*5 
73*3 
$ 
he 
Pi 
-j 
a 
16'5 
l8‘5 
19‘0 
186 
193 
18‘5 
18*5 
19 
16*0 
16*5 
16*5 
13*0 
16*5 
1 1-5 
16*0 
15*0 
16*0 
16*5 
16 
16*5 
15*6 
17*0 
In the shade, 
Highest Atmospheric Pressure 29*967 Inches. 
Lowest Atmospheric Pressure 29.696 „ 
{ B ighest Temperature 92*°5 Fah. 
I Lowest Temperature 71*°5 „ 
Greatest Fall of Rain in 24 hours 1*42 Incite 
Temperature 
of 
Radiation. 
1 
02 
Dillerence bun 
and Shade. 
Grass. 
Dinerenee Shade 
and Radiation. 
°F. 
°F. 
°F. 
°F. 
ICO'O 
68*5 
69*5 
3*0 
144*0 
52*5 
69'5 
3 0 
147*0 
51*5 
70*0 
3*0 
144*0 
52*5 
70-0 
2*6 
157*0 
64*5 
70*5 
3*0 
150*0 
57*5 
70*0 
2*5 
13iJ-0 
39*0 
70*0 
4*5 
143*0 
51*0 
70*0 
3-5 
150*0 
57*6 
70*0 
3*5 
148-0 
56*0 
70.5 
3*0 
150*0 
67*5 
70.0 
3.0 
160-0 
68*0 
69-0 
4.5 
149-0 
57*0 
69 ‘u 
4-6 
1530 
61*0 
70*0 
3*0 
151-0 
61*0 
70*0 
4 - 0 
148-0 
58*0 
69-5 
4*0 
150-0 
62*0 
68*0 
ii’5 
150-0 
65*0 
69*0 
3*0 
L30-0 
41*0 
69*0 
3*6 
154*0 
69*0 
70*0 
3*5 
153*0 
63*0 
70*0 
3*0 
148*0 
69*0 
69-5 
3.5 
155*0 
65-0 
70-0 
4-0 
143*0 
54-0 
71-0 
3-0 
155-0 
65-0 
70-0 
40 
144*0 
55*0 
69-0 
5-0 
141-0 
53-5 
70-0 
4*5 
152 0 
62-0 
69-0 
4*5 
148 0 
57*5 
70-0 
4-5 
141*0 
51*0 
79-5 
3-0 
151*0 
61*0 
70-o 
3*5 
148*7 
58*2 
69-7 
__ 
3*6 

Height of Bar Cistern above Sea Level , 43 ft. 
Wind. 
Direction, 
H 
c* 
a 
to 
rH 
21 H. 
ssw- 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
wsw. 
ssw. 
ssw- 
ssw. 
ssw. 
NNW. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
wsw. 
ssw. 
ssw. 
wsw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
SSW. 
ssw. 
ssw. 
ssw. 
ssw. 
wsw. 
ssw, 
ssw. 
NNW. 
ssw 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
ssw. 
wsw. 
wsw. 
wsw. 
ssw. 
ssw. 
ssw. 
NNW. 
ssw. 
ssw. 
wsw. 
ssw. 
CD 
<2 
a 
3 
H 
50*0 
65*0 
80*0 
105*0 
60‘0 
55*0 
95*0 
60*0 
85*0 
45*0 
75*0 
40 o 
60 0 
75*0 
60‘0 
80*0 
125*0 
950 
55*0 
75-0 
100*0 
65*0 
45*0 
75 0 
86*0 
75 0 
55*0 
60 '0 
70‘0 
85*0 
95.0 
72*5 
Temperature of 
Evaporation. 
a 
OS 
op. 
77*0 
78*5 
79*6 
76*5 
76 5 
75*5 
79*5 
78*5 
79*0 
76*6 
76*5 
79*0 
78*5 
70.5 
75*5 
76*5 
75 5 
78*6 
74*5 
75- 6 
76- 0 
76 5 
i7'b 
7 6*5 
76-0 
770 
79*0 
78-5 
79*0 
77*5 
77*0 
77*1 
a 
40 
°F 
79*5 
79*0 
70*5 
79*6 
78*5 
79*5 
78*5 
76*5 
79*6 
78*5 
79*5 
79*5 
79*5 
79*6 
78*5 
77*5 
76.5 
76*5 
76 5 
76*0 
78*5 
78*5 
79 5 
78- 5 
79*0 
79- 0 
79*5 
79.5 
79 5 
78*5 
78*0 
a 
rH 
IN 
op. 
76*5 
75*5 
75*5 
75’0 
75*5 
76'5 
77'0 
75'0 
76‘5 
76'5 
75*0 
77*5 
76*6 
75*5 
76*5 
75*5 
76*0 
73*5 
73*5 
73*5 
76*0 
75*6 
76*5 
75*5 
75*6 
75*6 
76*6 
77*5 
76*5 
76*5 
76*0 
78*4 75*7 
PI 
o3 
op 
77.6 
77*6 
77.1 
77*o 
76*8 
77*1 
78*3 
76* (i 
78 
76* G 
77*o 
78*6 
78*o 
77*1 
76*8 
76 5 
76- ( ) 
76- 1 
74*8 
75 o 
70.5 
76 8 
77- 8 
70*8 
76. 
77. 
i a- 
77 0 
Computed 
Vapour Tension, 
a 
a 
a 
c 
c3 
Q3 
a 
a 
a 
C3 
CS 
to 
H 
*— > 
a 
JS 
to 
£ 
Ins. 
Ins. 
Ins. 
Ina. 
/o 
% 
% 
% 
•882 
*857 
*845 
•861 
S5 
63 
32 
76 
*866 
*945 
•829 
•886 
72 
85 
86 
81 
•871 
*791 
*816 
•826 
67 
63 
82 
72 
•858 
*884 
•829 
■857 
87 
69 
36 
80 
*791 
*832 
■809 
■810 
68 
64 
80 
70 
*82y 
*877 
•831 
"845 
86 
67 
78 
77 
*871 
*871 
•848 
•863 
66 
65 
75 
68 
•838 
•791 
•822 
■817 
65 
68 
84 
72 
•891 
*884 
•838 
.871 
10 
69 
80 
73 
*831 
•898 
*809 
•846 
78 
72 
30 
76 
*818 
*898 
*895 
•870 
75 
72 
89 
78 
•925 
*877 
*831 
•877 
79 
67 
78 
74 
•S66 
•871 
*775 
•837 
72 
66 
71 
69 
•831 
■911 
•802 
•848 
78 
76 
78 
77 
■852 
•866 
•838 
•862 
85 
72 
8o 
79 
•838 
•868 
•809 
•83: s 
•0 
81 
80 
80 
•795 
•825 
*838 
•813 
76 
77 
30 
77 
•906 
•838 
*780 
•838 
83 
80 
88 
83 
•807 
-796 
•773 
•792 
83 
69 
86 
81 
•809 
■838 
•763 
■800 
80 
80 
80 
8o 
■gls 
•825 
•802 
•815 
76 
62 
78 
71 
•791 
-866 
■780 
■813 
68 
72 
73 
71 
•834 
■877 
•825 
•845 
72 
67 
77 
72 
•818 
■871 
•8U9 
•832 
75 
65 
So 
73 
•825 
•891 
•809 
•841 
77 
70 
80 
75 
•855 
•864 
•809 
•842 
77 
64 
30 
73 
•904 
•884 
•831 
•873 
72 
69 
78 
73 
•893 
•884 
•862 
•879 
79 
69 
79 
75 
■898 
•898 
•831 
•875 
72 
72 
78 
74 
*862 
•866 
•845 
•867 
79 
72 
82 
79 
•841 
•879 
•852 
857 
73 
75 
85 
77 
*848 
■865 
■820 
•844 
76 
70 
80 
75 
Relativ 
Humi- 
dity. 
Rain 
Inch- 
es. 
•48 
•16 
1*42 
1*40 
*65 
*25 
*38 
■To 
1.04 
*82 
1*08 
•17 
Total 
7*85 
Cloud 
0 TO 10 
a 
a 
-H 
-H 
cs 
r-H 
N 
2 
4 
4 
4 
8 
8 
2 
4 
4 
2 
2 
6 
O 
4 
4( 
4 
4 
8 
4 
6 
6 
2 
2 
4 
2 
4 
6 
2 
2 
6 
2 
4 
4 
2 
2 
o 
4 
8 
6 
2 
6 
» 
4 
6 
6 
4 
6 
ft 
4 
6 
8 
6 
6 
8 
6 
6 
6 
4 
8 
6 
2 
4 
4 
2 
2 
6 
2 
6 
LU 
2 
6 
10 
2 
2 
2 
2 
0 
2 
6 
0 
2 
4 
6 
2 
8 
10 
2 
6 
10 
2 
4 
6 
. 3 
6 
6 
Cloud k Weather 
Initials. 
a 
a 
eC 
a 
< 
CO ! 
CL 
o 
-A3 
CO 
. 
O 
a 
o 
-45 
CD 
< 
■+-i 
< 
a 
os 
Ck r b. 
Pk, b. 
Ck,b, 
Ck, b. 
?s. k. b 
Ck, b. 
Ck, b. 
Ck, b. 
Ck, b. 
Ck, b. 
Pk, b. 
Pk, e. d. 
3s, k. c, 
Pk, b, 
Ck, b. 
Ck. b. 
Ck, b, 
Ck, b. 
Ck, b. 
Ck, b. 
Ck, b 
Cs, k. b 
Ck, b. 
Ck, b. 
C\ b. 
Ck, b. 
Pk, o. r. 
Pk, b. 
Pk. b, 
Pk, b, 
Pk, b. 
Pk c. 
Ck, b. 
Ck, b. 
Ck, b. 
Pk, b. 
C,k b. 
Pk, o. r 
Pk, o. r, 
Pk, c. 
Pk.c. 
Pk, c. 
Pk, c. d 
k , c. 
Pk, o, r 
Pk, b. 
Ck, b. 
Pk, c. 
Ck, c. 
Ck, b, 
Ck, b. 
Ck, c. 
Ck, b. 
Pk, o. r 
Pk, c. 
Ck, b. 
Ck, b. 
Pk, o, r. 
Ck, b. 
Pk, c, 
Ck, b. 
Pk, o, r. 
Pk, c. 
Pk, b. 
Ck, c. 
Ck, c. 
Ck, b. 
b. 
Pk, c. 
Pk, o r. 
Pk, c. 
Pk, o, r. 
Pk, o, r. 
Pk, o, r. 
Ck, c. 
Ck, o. 
Ck, b. 
Ck, e. 
Pk, o, r. 
Po, r, 
Pk, b. 
b. 
b. 
Ck, e. 
Po, r. 
p k, o, r. 
Ok, c. 
*The daily Mean Temperature of air is obtained 
from the results of the observations at 9 H, 15 H, 21 
A, and Minimum Temperature. 
J. H. McCLOSKY, 
Colonial Surgeon. 
