<?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">animal-powered engines</topic></authority><related type="broader"><topic>engines</topic></related><variant type="other"><topic>animal-powered engine</topic></variant><variant type="other"><topic>engines, animal-powered</topic></variant> <note xml:lang="en"><![CDATA[ Engines that are activated through the use of animal locomotion. The animal works either in a vertical or horizontal plane to drive a central axis, treadwheel, or series of gears in more sophisticated machines. ]]></note></mads>