Text Collection

Meteorological observations, 1784-1805
Meteorological observations, 1784-1805
This collection contains two volumes of David Rittenhouse's daily diaries. The first volume contains meteorological data for 1792. The second volume is more content rich and covers the period in 1785 during which he traveled west to determine the boundaries of Pennsylvania. These records include observations on the environment, daily expenses, and other travel-related recordings. There are also various sketches, calculations, and other notes in these volumes.