Note 65 — Chapter II · The Bibliography of Bibliographies Comes of Age
Reading edition
His name is often misspelled. He is the author of a famous catalogue of the Ingolstadt university library that employed a novel scheme of classification. All or almost all the references to Ferg and the catalogue have been made at second-hand. I have seen half a dozen different dates of publication. I believe it was never published. At any rate, the manuscript catalogue by Ferg was carried off in 1945 "by unknown persons in an unknown direction" from the place where the manuscripts belonging to the library of the University of Munich were stored.