title: Helmholtz and the materialities of communication.
authors.affiliation: Program in History and Philosophy of Science, Stanford University, California 94305-2024, USA.
authors.forename: T
authors.initials: T
authors.lastname: Lenoir
mesh_terms: D004864:Equipment and Supplies / Q000266:history*; D005858:Germany; D049672:History, 19th Century; D009885:Ophthalmology / Q000266:history*; D055095:Optics and Photonics / Q000266:history*