<?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">brain tannage</topic></authority><related type="broader"><topic>tanning and tanning-like processes</topic></related><variant type="other"><topic>brain tanning</topic></variant><variant type="other"><topic>brain-tanned</topic></variant><variant type="other"><topic>tannage, brain</topic></variant><variant type="other"><topic>tanning, brain</topic></variant> <note xml:lang="en"><![CDATA[ Treating skins or hides with brain tissue which contains phosphorous compounds that oxidize oils to aldehydes. The process is not considered true tanning, as it is reversible, and the shrinkage temperature of the resulting material is not raised above that of the original. ]]></note></mads>