<?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">collodion</topic></authority><related type="other"><topic>wet collodion negatives</topic></related><related type="other"><topic>dry collodion negatives</topic></related><related type="other"><topic>collodion processes</topic></related><related type="other"><topic>nitrocellulose</topic></related><related type="other"><topic>dry collodion process</topic></related><related type="other"><topic>ambrotypes</topic></related><related type="other"><topic>collodion prints</topic></related><related type="broader"><topic>cellulosic</topic></related><variant type="other"><topic>binitrocellulosa</topic></variant><variant type="other"><topic>collodione</topic></variant> <note xml:lang="en"><![CDATA[ Cellulose nitrate in a mixture of 60% ether and 40% alcohol for making fiber and film. ]]></note></mads>