<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">arc lamps</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31415819</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:51:53</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">Holmes arc lamps</dcterms:alternative> <dcterms:alternative xml:lang="en">arc lamp</dcterms:alternative> <dcterms:alternative xml:lang="en">arc lamps, Holmes</dcterms:alternative> <dcterms:alternative xml:lang="en">arc lights</dcterms:alternative> <dcterms:alternative xml:lang="en">lamps, Holmes arc</dcterms:alternative> <dcterms:alternative xml:lang="en">lamps, arc</dcterms:alternative> <dcterms:alternative xml:lang="en">lights, arc</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Electric lamps in which the current is made to traverse an air gap between two electrodes, usually of carbon. The air in the gap as well as the two electrodes become heated to a brilliant incandescence. ]]></dc:description></metadata>