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74
sewers Warfarin, a comparatively new medium for the destruction
of the rat. Croydon was one of the first Authorities to take
advantage of this, amending the method of laying bait in manholes
in accordance with experience gained in a pilot scheme. A
marked reduction in the number of infested manholes is now recorded.
In the last treatment a check was made of the whole of
the foul water sewerage system and the result showed that my
confidence in the method now used was fully justified, less than
fifty manholes being recorded as infested in each of the last
two treatments.
The accompanying graph shows the results of the baiting of
the sewers since 1947. See Page 138.
FOOD SUPPLY
The supervision and inspection of the food supplies is
carried out by the Public Health Inspectors who are all qualified
in food inspection.
The following table shows the distribution of trades among
the 3,338 premises in the Borough at which food is known to be
sold, manufactured or stored.
Bakehouses 56
Bakers Shops 109
Sugar Confectioners 570
Cafes, Restaurants, Snack Bars and
Eating Houses and Kitchens 440
Works and Club Canteens 303
Public Houses 180
Off Licences 74
Grocers 582
Butchers 211
Wholesale Meat Markets 5
Chemists 80
Greengrocers 317
Fishmongers 76
Fried Fish Shops 57
Milk Distributors and Dairies 76
Premises from which Roundsmen and
Mobile Shops operate 35
Stalls 113
Pood Manufactories 16
Other Food premises not enumerated above 38
3, 338