<catchwords> describes the system used to ensure correct ordering of the quires making up a codex or incunable, typically by means of annotations at the foot of the page. [10.3.7 Catchwords, Signatures, Secundo Folio]
<sch:assert test="ancestor::tei:msDesc" role="nonfatal">WARNING: deprecated use of element — The <sch:name/> element will not be allowed outside of msDesc as of 2018-10-01.</sch:assert>