<?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">ammonia absorption apparatuses</topic></authority><related type="broader"><topic>biological sciences equipment</topic></related><variant type="other"><topic>ammonia absorption apparatus</topic></variant><variant type="other"><topic>apparatuses, ammonia absorption</topic></variant> <note xml:lang="en"><![CDATA[ Early devices, originally invented by Ferdinand Carre in 1860, which created a limited amount of ice based on ammonia’s affinity for water.    ]]></note></mads>