William Petty
Essays on Mankind and Political Arithmetic
"Essays on Mankind and Political Arithmetic" by Sir William Petty is a collection of essays reflecting on demographic studies, economics, and societal observations written during the late 17th century. The work aims to explore the relationships between population growth, urban development, and the economic implications of these factors, addressing the social and political questions of Petty's time as he investigates the growth of cities like London compared to others such as Paris and Rome. The opening portion of the text provides an extensive introduction to Sir William Petty's life and intellectual contributions, detailing his educational journey, inventions, and his role in the advancement of political arithmetic. It elaborates on the importance of population statistics, particularly focusing on London’s growth amidst challenging conditions such as the Great Plague and the Great Fire. The text outlines Petty’s methods for estimating populations, highlighting his innovative approach to data collection and analysis, which included using burial records and tax information. Additionally, it hints at his inquiries into the value of human life in economic terms, setting the stage for deeper discussions in the subsequent essays on political arithmetic.