Karl Holl's edition of the anti-heretical texts by the late Classical Bishop Ephiphanius of Salamis (Cyprus) is a classic among the editions of Greek Christian writers from classical antiquity. The work itself, which the author published under the eloquent title "Medicine Chest against Heresies", contains a large number of original texts, not preserved elsewhere, produced by various Christian groups which were rejected as heretical by the majority of the Church. With great zeal, Ephiphanius described above all the teachings and lives of gnostic groups, but he also turned his attention to other movements, for example the Monists. In his edition, the Berlin-based ecclesiastical historian Karl Holl attempted to produce a legible and grammatically correct text from the difficult manuscript sources; in the critical appartus, he provided a rich factual commentary. Even though critics were annoyed by his frequent interference with the source texts, still the latest major English translation uses Holl's text.