<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">cellulose nitrate film</topic></authority><related type="other"><topic>nitrocellulose</topic></related><related type="other"><topic>nitrate cels</topic></related><related type="broader"><topic>film</topic></related><variant type="other"><topic>celluloid</topic></variant> <note xml:lang="en"><![CDATA[ A flexible support or base used for photographic negatives and motion picture film from 1890 to the 1950s. It is made of cellulose nitrate with camphor as a plasticizer; it is unstable and flammable. ]]></note></mads>