National Geographic : 1949 Feb
) atlonlalte,,graplnlcoelety 1/0 nlroleatlll'ullo I}V re laa.llaart \v. i IIaixI1 Domed Cloud Scuds Across the Sky; Windmill Sails Swirl Like Propeller Blades This old mill, one of dozens, grinds grain near Randers. Smaller blades in the rear turn the four large sails into the wind. Skilled farmers, Danes produce three times as much grain to the acre as the United States.