On Certain Tests of a Thriving Population. Four lectures, etc

2d Edition according age at death agricultural amongst Animals annual appears Author average births boards bound British calculated cause cent character checks cloth College coloured comparative complete comprising condition considerable containing corrected Cultivation deaths Description Dictionary districts Domestic duration Economy effect Encyclopædia England English Engravings estimate expectation fact France French furnish Garden given gives greater Guide History Illustrations important improved increase interesting Introduction Ireland Italy John labour land late less living London manner marriages mean age mortality Natural nearly Notes observations original period persons Plants Plates population positive Practical present Principles probable produce progress proportion published rate of mortality remarkable Report respect result returns revised Royal Science Society supposed tion towns Translated TREATISE University various Vignette Titles vols volume Wales whilst Wood Woodcuts Young