TY - JOUR T1 - Observations on the Expectations of Lives, the Increase of Mankind, the Influence of Great Towns on Population, and Particularly the State of London with Respect to Healthfulness and Number of Inhabitants. In a Letter from Mr. Richard Price, F. R. S. to Benjamin Franklin, Esq; LL.D. and F. R. S. JF - Philosophical Transactions (1683-1775) VL - 59 SP - 89 EP - 125 PY - 1769/01/01/ UR - http://dx.doi.org/10.1098/rstl.1769.0016 M3 - doi:10.1098/rstl.1769.0016 AU - Price, R. ER -