Let’s learn about weather! This banjo shaped aneroid barometer has a mahogany case with an inlay veneer of flowers and shells. It was donated to the Botetourt County Museum by the General James Breckinridge Chapter, Daughters of the American Revolution 50 years ago. Before radio, TV and smart phones. people used a thermometer and barometer. The barometer at the bottom could predict approaching weather by measuring changes in air pressure for the next 24-48 hours. Barometric readings shown here are: FAIR, SET FAIR, VERY DRY, STORMY, MUCH RAIN, RAIN or CHANGE.