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Credit
Die Raumvorstellung aus dem Gesichtssinne : ein Beitrag zur Theorie des Sinnenlebens / von Richard Hasenclever. 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.