Paper, method of calculating the population by Sir R. C. Undated, signed in initials on the last page. Discusses the make-up of population for the benefit of government, in particular interested in relation to marriages and 'fruitful' age, profitable occupations. Then proposes a geometrical representation of proportions of the population. Remedy to the slow growth of the population, the thread of 'popery". Closes on a method for arithmetical observation of a county including a table organised by gender. Last page includes proposed measures to standardise import and labourer wage. [1667-1676]