24i
10 Sub-Inspectors as this would allow him to devote two or three working days
a month for the work of each individual Sub-Inspector in his charge. 10
Inspectors will thus be required.
It has been found that there are about 500 wells in the city and over 60 per
cent. of these are mosquito breeding places. 80 of these are absolutely useless and
never used by anybody. In addition to these there are an equal number which
the owners will permit to be closed with a little persuasion. There thus remain
350 wells to be absolutely dealt with. These will require inspection and
periodical cleaning. They also need to be stocked with larvae-destroying fish.
For this purpose special gangs of men under a good Mukadum must be em-
ployed for periodical cleaning at least once in two months. A gang of four men
and one Mukadum can cleanse efficiently 30 wells a week on an average, as the
majority of the wells are too shallow. That is, two such gangs will be enough all
the year round.
The great amount of routine work rendered necessary by the adoption of
such a scheme would require proper control and co-ordination, and this can only
be done by placing one responsible officer in sole charge of anti-mosquito
measures. This officer should be an Assistant to the Health Officer and would
require to be specially trained or to have had special experience. It would
soon be found that the effect of more constant inspection will necessi-
tate an increase in the number of men employed in cleansing the city, and for
the work of filling in and levelling small pools and hollows, and abolishing
minor breeding places, an increased number of coolies, Mukadums, bullocks,
etc., will be required.
(The following figures have been arrived at in consultation with the
Health Officer, Karáchi.)
The total statt then comes to : —
100 Sub-Inspectors at Us. 20, each per month
200 Coolies
at Us. 12
10 Inspectors
at Rs. 75
...
...
...
2 Well-cleansing gangs of 4 men and 1 Mukadum each
...
Health Officer at Rs. 350 ; 2 clerks at Its. 60 each and 2 peons
at Us. 12 each, etc.
Material Larvacides, etc.
Increased cleansing work
...
...
ata
• • •
...
...
Total
•••
...
••«
...
Us.
3)
)}
))
»
Es.
24,000
28,800
9,000
1,500
6,500
10,000
5,000
84,800
or in rough figures Rs. 90,000 per year will be required.
Scheme II—It is perfectly possible to rid the city of Stegomyia alone.
It is not necessary to undertake such careful work as detailed in Scheme I.
The inspection will be chiefly limited to temporary breeding places (mentioned
in chapter III) and of the permanent ones—wells and garden tanks very near
the houses. Against this has to be set clown the fact that every house must
he visited. The life-cycle of Stegomyia larvae teaches us that an inspection
every 10 days will leave an ample margin. All things considered the amount
of work to be done will be lessened by about half. Allowing a third more of
the houses to be inspected by each Sub-Inspector and insisting on a ten days'
instead of a weekly interval, we have for Scheme II :—
Group A—400 houses every 10 days
Group B—560
Group C—1,050
V
10
10 »
...
...
...
15
25
10
Sub-Inspectors.
The total staff on the same calculation comes to :—
50 Sub-Inspectors
100 coolies
5 Inspectors
2 well cleansing gangs
Head Office establishment
Material, Larvicides, etc.
Increased cleansing work
...
• »•
...
...
«a«
». •
...
...
...
...
...
Total
Rs.
»
})
)>
Rs.
12,000
14,000
4,500
1,501)
6,500
5,000
5,000
48,900
or in rough figures Es. 50,000 per year,