<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31345424</termId><termName>dry plates</termName><termType>PT</termType><termNote><![CDATA[ Initially, the term referred to sheets of glass coated with collodion subsequently sensitized and dried. In 1871 Richard Leach Maddox discovered that an emulsion of gelatin containing a sensitive silver salt could be exposed to the action of light in a dry state. This provided a leap forward in photographic media as it simplified the process of taking photographs, avoiding the necessity of plates being prepared immediately before exposure, and processed immediately after. ]]></termNote><termCreatedDate>2026-03-30 20:33:10</termCreatedDate><relation><relationType>UF</relationType><termId>31345425</termId><termName>dry plate</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320997</termId><termName>photographic plates</termName><termType>PT</termType></relation></term>  </Zthes>