US Department of the Interior @Interior
Julia Gardner, one of the first women geologists hired by the @USGS, served in the Military Geology Unit during WWII. She helped pinpoint the enemies launch sites for balloon-borne incendiary bomb attacks, by analyzing seashells in the balloons’ sand ballast. #WomensHistoryMonth https://t.co/2J7OvsnMnS — PolitiTweet.org