Recently I told a student that errors in transcription which appear prima facie to be due to oral recitation may well also stem from copying a written exemplar, since scribes are known to recite to themselves, as it were, when copying. I think/thought that this was well known, but she tells me that she's looked around and not found a discussion of this idea. I have no idea now where I learnt it (although i believe it to be true). Any references?

thanks so much, jonathan

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