<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31430290</termId><termName>cylinders</termName><termType>PT</termType><termNote><![CDATA[ Sound recordings invented by Thomas Edison in 1877. They were the earliest form of phonograph record, and were marketed commercially. Sound would be funnelled through a horn and against a diaphragm, which would vibrate. The resulting vibrations were transmitted to a stylus, which followed a helical path along a surface, usually wax, which coated a rotating cylinder. The resulting cylinder could be played by a cylinder phonograph.  ]]></termNote><termCreatedDate>2026-03-30 20:56:05</termCreatedDate><relation><relationType>UF</relationType><termId>31482783</termId><termName>audio cylinder</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31482784</termId><termName>audio cylinders</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430291</termId><termName>cylinder</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430292</termId><termName>cylinder recording</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430293</termId><termName>cylinder recordings</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430294</termId><termName>cylinder records</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430295</termId><termName>cylinder, phonograph</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430296</termId><termName>cylinders, phonograph</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430297</termId><termName>phonocylinders</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430298</termId><termName>phonograph cylinder</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430299</termId><termName>phonograph cylinders</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430300</termId><termName>wax cylinder</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31430301</termId><termName>wax cylinders</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31400926</termId><termName>sound recordings</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31466835</termId><termName>dictation cylinders</termName><termType>PT</termType></relation></term>  </Zthes>