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In 1844, the Austrian mineralogist Wilhelm von Haidinger reported he couldsee the polarization of light with the naked eye. It appears as a faint,blurry, transient, yellow hourglass shape superimposed on whatever one looksat. It is now commonly called Haidinger's brushes. To our surprise, even thoughthe paper is well cited, we were unable to find a translation of it from itsdifficult, nineteenth-century German into English. We provide one, withannotations to set the paper into its scientific and historical context.

Historical Context, Scientific Context, and Translation of Haidinger's (1844) Discovery of Naked-Eye Visibility of the Polarization of Light