Illustrated Companion to the Latin Dictionary/Membranula

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

MEMBRA'NULA. Diminutive of the preceding; a small strip of parchment upon which the title-pages, lettering pieces, or contents of a books (indices) were written. Cic. Att. iv. 4.