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Credit
"N" rays : a collection of papers communicated to the Academy of Sciences : with additional notes and instructions for the construction of phosphorescent screens / by R. Blondlot ; translated by J. Garcin. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.