"Ladies who have ample leisure and who lead methodical lives take a plunge or sponge bath three times a week, and a vapor or sun bath every day. To facilitate this very beneficial practice a south or east apartment is desirable. The lady denudes herself, takes a seat near the window, and takes in the warm rays of the sun. The effect is both beneficial and delightful. If, however, she be of a restless disposition, she may dance, instead of basking, in the sunlight."
~The Everyday Cook-Book
Thank goodness dancing is permitted!