<?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">microscopes</topic></authority><related type="narrower"><topic>binocular microscopes</topic></related><related type="narrower"><topic>electron microscopes</topic></related><related type="narrower"><topic>petrographic microscopes</topic></related><related type="narrower"><topic>digital microscopes</topic></related><related type="other"><topic>microscopy</topic></related><related type="other"><topic>microposcopists</topic></related><related type="broader"><topic>optical instruments</topic></related><variant type="other"><topic>microscope</topic></variant><variant type="other"><topic>microscopic</topic></variant> <note xml:lang="en"><![CDATA[ Optical instruments consisting of a lens or combination of lenses that allow the viewing of objects that are too small to be seen with the naked, unaided eye. The term may also be used for various types of instruments that use a stream of electrons (electron microscope), electromagnetic radiation (x-ray microscope), or other means other than light and lenses to magnify images of small objects. ]]></note></mads>