On the Interpretation of Correlations between Indices or Ratios

P. 537 above.I may perhaps add that, if Dr. Maynard had dealt with a series of districts of very diverse character, some rural, some urban, a correction for population might conceivably have a more appreciable effect.For, in this country at least, the registration districts with largest populations are urban districts, and a correction for population would effect a partial correction for degree of urbanisation.