David Rittenhouse maintained meteorological observations in two volumes that span the first twenty years of the early national period (5/6/1784-9/30/1805). Alongside weather conditions, Rittenhouse regularly documents temperatures, the conditions of roads, expenses, and accounts. These volumes may interest researchers studying meteorological conditions as well as other regional phenomena such as eclipses and the Yellow Fever epidemic.

Meteorological observations, 1784-1805
 
David Rittenhouse maintained meteorological observations in two volumes that span the first twenty years of the early national period (5/6/1784-9/30/1805). Alongside weather conditions, Rittenhouse regularly documents temperatures, the conditions of roads, expenses, and accounts. These volumes may interest researchers studying meteorological conditions as well as other regional phenomena such as eclipses and the Yellow Fever epidemic.