mil
PUBLIC RECORD OFFICE
Reference :-
iC.O. 885
ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC- COPYRIGHT PHOTOGRAPH-NOT TO
23 PUBLIC RECORD OFFICE, LONDON
24
There are numerous other streams, but these are of no size except during the rainy season; indeed, the majority of them run dry during the dry season.
With the exception of the Banda District, where a range of low hills extends from north-east to south-west, the surface of the country is undulating, and lies at no great height above sea-level; that portion drained by the River Pru appears to be especially low lying.
Vegetation. The coastal belt of rain forest ends a short way south of the southern boundary of the Province. It is succeeded by a narrow zone of forest of the monsoon type, which reaches to about. 7° 35′ N., and is in turn replaced by forest of the savannah type. Dense forest (fresh water swamp forest) clothes the Tracts of this type of forest are also met banks of the rivers and larger streams. with isolated in the savannah forest, apart altogether from the rivers, wherever there is sufficient permanent moisture in the soil to maintain its growth. Large stretches of grass country also are found, chiefly in the Mo District, where trees are practically absent. The distribution of the various species of tsetse fly varies with the type of vegetation. Glossina palpalis is to be found everywhere in forest of the denser types. Glossina tachinoides in this Province is only met with in the open thick growth bordering the larger rivers, and does not seem to frequent bush to the extent that it does in Northern Nigeria. G. longipalpis is the fly most commonly taken in savannah forest, and, as this type of forest covers the largest portion of the Province, it is the fly which is most universally distributed. G. submorsitans appears to occur in a belt stretching across the old Gambaga Road between Charandra and Porta. It is commonly met with in open grass country in Northern Nigeria, and, as has been stated, such “
is common in the open bush Mo District. G. pallicera is an inhabitant of the dense forest found upon the It is one of the rarer banks of streams. It never seems to stray far from water.
G. nigrofusca seems to favour the tsetse flies, but is a voracious blood sucker.
Glossina outskirts of dense forest, where it is giving place to savannah forest. medicorum. This fly, which is also rare, seems to be an inhabitant of savannahı forest country.
"
Climate and Rainfall.-As the relative duration of the wet and dry seasons. the varying degrees of humidity, and especially the range of temperature, accord- ing to the researches of Kinghorn and Yorke, play an important part in the bionomics of tsetse flies, it is necessary to briefly describe the main climatic condi- tions. Lying between the seventh and ninth parallels of latitude, the climate of the Province is more tropical than equatorial, that is to say, there is only one annual maximum in the temperature and rainfall curves, and only one minimum. The temperature curve reaches its maximum in March and April, and its minimum in July. The rainfall curve attains its maximum in August and September, and its minimum in December and January.
The prevailing wind comes from the north-east during the dry season, and The dry season may be said to last from the south-west during the rainy season.
from November to March, the rainy season from April to October.
Judging from the tables giving the rainfall at Kintampo for the years 1910. 1912, and 1913, and the rainfall at Nsumia (British Krachi) for ten months of 1913, there appears to be considerable variation in the fall during different years. and considerable difference in the rainfall upon the western and eastern sides of the Province. It is a pity that more attention was not paid to the keeping of No record for that year these meteorological statistics at Kintampo during 1911.
is available for comparison.
Tables giving the maximum and minimum shade temperatures and the rela- tive humidity for Kintampo during 1910, 1912, and 1913, are shown below, also a table of the rainfall at Kintampo for the same years, and a table of the rainfall at British Krachi for ten months of 1913.
25
25
MONTHLY TEMPERATURES And Relative HUMIDITY FOr 1910-1913 at Kintampo.
1910.
1912.
Maximum Minimum
Sh.
St.
Relative
Humility.
Maximum Minimum
Sh.
St.
Helative Humility.
January
90.02
67-06
58-41
January
February
92.92
69-40
58-14
February
Murch
94.67
72.08
69.87
March
95.6
70·6H
April ...
95.56
71.58
59-19 April ...
94.18
71.46
May Juve
91-09
70.25
72-81 May
91.74
74.82
87.78
68.58
78-78
June
87.4
70-16
July
84.12
68.09
80-47
July
81.84
66.7.1
August
88-07
68-51
81.40
August
88.16
68.77
September
85.16
68.26
79.90
September
86.60
69-80
October
98.58
67.61
76.84
October
90-52
69.52
November
90-08
68.40
78.76
November
98.76
68.99
December
90-68
65-80
68-88
December
98.26
67.12
January February
Marchi
April
May
June
July
August
་་་
September
October
November December
January February
March April
Muy
June
July
August... September October
November December
1011.
1913.
Maximum Sh.
Minimum
Ah.
Relative Humility.
Maximum Minimu
Bh.
Relative
Sh.
Humidity.
89.80 97.91
66.77
59.19
January
99.58
69-64
45+12
70-14
55.51
February
94.92
66.07
47-07
March
98.45
78.64
49.58
April
99-43
72-1
69.29
May
91.29
71.82
64-19
i
June
89.29
69.88
July
85.88
68.67
67-90 78.87
August
84-19
69-70
77-88
September
86.60
68.66
79-78
October
90+70
68.12
69.14
November December
91.70 } 65.15
62-28
MONTHLY RAINFALL AT KINTAMPO DURING 1910, 1912, 1913.
Total for year
1910.
1912.
1913.
1911.
inches.
inches."
inches.
inches.
0.05
1-10
2.78
0.88
1.91
1.98
2.74
2:58
8.69
5.81
8.40
6.68
4.55
10.55
7.50
7.96
5.16
10-69
5.06
9.70
8.89
8.72
16-29
21.17
6-74
14.61
12.15
1.88
11.85
0-18
1.00
0:41
0.82
76-79
11.81
77-21
(ten monthis)
(eleven months)
MONTHLY RAINFALL AT BRITISH KRACHI FOR 1913.
Total (10
January. February. March. April.
May. June. July. August. September October, November. December.monthe.)
in. 0.85
in.
1.75
in. itt. 0.02 4.51
in. in. in. 9.17 6.02 6.87 11.68
in.
in.
in.
9.22
2.99
in. 7.19
25
LY TEMPERAtures and Relative HumIDITY FOR 1910-1913 at KINTAMPO.
1910.
1912.
Maximum Blu.
Minimum
Bh.
Relative Humidity.
Maximum Sh.
Minimum sh.
Relative
Humidity.
90-02
67.06
08.11
January
02.02
69:46
58-14
February
94.67
72-08
69.87
Marchi
95-6
70.58
95.56
71.68
50-19
April
94.18
71.46
91-09
70-25
72.84
May
91-74
74.82
87.78
68.68
78-78
June
87-4
70-16
84-12
88-09 ¡ 80-47
July
81-84
66-74
88-67
68-51
81-40
August
88-16
68.77
85-16
68.20
70-90
September
86.60
69.80
88-68
67-01
76.84
October
90.52
69-52
90-08
68.40
78-76
November
98.76
68.98
90-68
65.80
68-88
December
98-26
67.42
1911.
1913.
Maximum Minimum Relative
Maximum
Minimum
Relative
Sh.
Sh.
Humidity.
Bb.
Sh.
Humidity.
89-80 97-91
66.77 70.14
59.18 55-51
January
99.58
68.64
45.12
February
94.92
66.07
47:07
March
98-45
78-64
49-58
April
99.49
72-1
68.29
May
91.29
71.82
64-19
June
89-23
69.88
67.90
July
85.88
69.67
78.87
August
84-19
69.70
77-88
September
86-60
68.66
79-78
October
90-70
69-12
69-14
November
91.70
65.15
62.28
December
MONTHLY RAInfall at KinTAMPO DURING 1910, 1912, 1913.
for year
-
PUBLIC RECORD OFFICE
། ། ། ། ། །
Reference:
mumimmimC.O. 885
COPYRIGHT
23 PUBLIC RECORD OFFICE, LONDON
ALLY WITHOUT PERMISSION OF THE BE REPRODUCED PHOTOGRAPHIC-
PHOTOGRAPH-NOT TO
1910.
1911.
1912.
1913.
inches.
inches."'
inches.
inches.
0.05
1.10
2-78
0.88
1.91
1-96
2.74
2:58
3.60
5.84
8:40
6.68
4.55
10.55
7.56
7.96
5.16
10.69
5.00
9.76
8-38
3-72
16.29
21:47
5.74
14.61
12.15
4.88
11.85
0-18
1.00
0-41
0.82
75-79
41.81 (ten months)
77.21 (eleven months)
MONTHLY RAINFALL AT BRITISH KRACHI FOR 1913.
May, June. July, August. September. October. November.! December.
ebruary. March. April.
in. 1.75
in.
ju.
in.
0.62
4.51
¡ 8:17 6:02
in.
in. in.
in.
in.
0.87 11-68
9.22
2.99
1
-
Total(10 monthis.)
in.
-
7-13