sentences:  His argument for a Poor Law supporting the poor ran entirely contrary to the advice of orthodox political economists of the day, who held with Malthus;
  
  Since population increased by geometrical progression whilst production increased by arithmetical progression, population was only held in check by the want and distress of the poor; hence to relieve that want and distress whether by charity or by the poor-rates was (however kind-hearted) wrong-headed since it would artificially sustain a greater number of the poor (and hence increase the number of those in distress).Sadler scrutinised Malthus's An Essay on the Principle of Population and became convinced that the statistics it quoted in support were unsound (or where sound mis-used).From his own studies of census data for England in 1810 and 1820 he concluded that the birthrate per hundred marriages was lower in the more densely populated counties; he went on to argue that this was because the more densely populated counties enjoyed a higher standard of living, and that prosperity, not poverty, was the more effective check on population growth.