Note 107 — Chapter III · Lists of Books Entitled "Bibliotheca"
Reading edition
Labbé is probably referring to one or another of the preacher's guides by such men as Louis (or Jean) Bayl, Pierre Blanchot, Francois Combefis, and G. B. Pontanus, all of whom wrote before the publication of the Bibliotheca bibliothecarum in 1664. Their works were entitled Bibliotheca concionatoria.