"Liber I, Quaestio 21 [London Transcription]" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "transcription" . "true" . . . "true" . "4" . . "pg-b1q21/lon/transcription" . "draft" . . "diplomatic" . "head-dev" . "0001" . . "Jeffrey C. Witt" . . .