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 DIAGRAM IX.

The dotted line shows the percentage of vaccinations to total births.

Authorities.

The three Death-rates and the Vaccinations are from Table 34 (p. 450) in the Fourth Report.

The Small-pox death-rate is from Table 45 (p. 461) in same Report.

Figures to continue the diagram to 1896 have been kindly furnished by Mr. Biggs from official sources.