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Published online by Cambridge University Press: 15 May 2009
The time may be considered opportune for bringing forward this subject in that the near approach of the publication of the completely classified results of the census of 1901 will cause the attention of many Medical Officers of Health to be directed to the possibility and desirability of using the census data for working out Life-Tables for their respective districts, and doubtless the construction of many more local Life-Tables will be contemplated than was the case after the census of 1891.
page 7 note 1 Based on the total population for England and Wales given in the Preliminary Report of the recent census, the factors “m” and “n” for the censuses of 1891 and 1901 have been worked out as follows:
(see Mr Waters' paper in the Journal of the Royal Statistical Society already reffered to).
It is not likely that the finally corrected census number for 1901 will vary sufficiently from the number as yet given, to cause any material error through using the above values of m and n.
page 13 note 1 The data for England and Wales for 1841—50 and 1851—60 produce a value of N less than C, the difference being most marked in 1841—50. This is probably explained by the births having not all been registered. For each succeeding decennium up to 1881—90 there has been a progressively increasing excess of N over C.
page 33 note 1 It is of course necessary to assume that the estimated population for each year is composed of age and sex groups in the same proportions to the total as those ascertained at the preceding census.