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134
The daytime increase and movement in the County population is very large,
and its impact on the spread of such diseases as influenza or the common cold must
be considerable.
FAMILY ACCOMMODATION SURVEY
Because of lack of time and staff and the enormous labour involved, the Council's
Architect found it impossible to carry out a county survey of accommodation rates
as suggested by the Ministry of Town and Country Planning as part of the Survey
for the Development Plan for the County of London and to meet this difficulty in
FAMILY ACCOMMODATION SURVEY 1950
VARIATION OF ACCOMMODATION RATES WITH SIZE OF DWELLING
part it was agreed that the Health Visitors should assist by collecting information
concerning the number of rooms and inhabitants for a sample covering the County.
From records of approximately 400,000 families and personal records of each
Health Visitor comprising 800 to 1,200 cases it was decided that the extraction of
the information required from every twentieth case should provide an adequate
sample.