English
Book digitized by Google from the library of Oxford University and uploaded to the Internet Archive by user tpb. · Microfilm
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Ebook · The influence of the blue ray of the sunlight and of the blue colour of the sky, in developing animal and vegetable life; in arresting disease, and in restoring health in acute and chronic disorders to human and domestic animals, as illustr · Pleasonton, Augustus James, 1808-1894. [from old catalog] · Internet Archive
Light, Colored. [from old catalog] · Phototherapy. [from old catalog]