Tables of the pressure and force at varying wind speeds by an unknown author Descriptive tables of the pressure of the wind force at one square yard, ten square yards, 100 square yards, and 1000 square yards at varying wind speeds. Presented in tables of varying miles per hour (one to 60 miles per hour), and later in the manuscript, in tables with varying wind speeds presented in feet per second (one to 90 feet per second). 18th century