[1] Giovanni Battista Audiffredi entered the Dominican Order, and soon attracted attention by his taste for books and his talent for the exact sciences.

[1] Audiffredi published a bibliographical work in four folio volumes, entitled Bibliotheca Casanatensis librorum typis impressorum, 1761–1790.

The more extensively planned Catalogus historico-criticus editionum Italicarum saeculi XV (ibid., 1794) was to give an account of books printed in twenty-six Italian cities, but Audiffredi did not live to complete the work.

[1] Audiffredi's position enabled him to become an expert antiquarian, and he found time to cultivate his mathematical talent and to devote himself to astronomy.

The epoch was favored with a number of brilliant objects of this kind, and that of 1769 distinguished itself by its great nucleus and by the tail which stretched over more than half the sky.