The blank is left probably because Swift neither felt inclined nor qualified to discuss the relations between the different medical authorities of recent times. He was not, indeed, so fitted for the scientific discussion as the despised Wotton, whose treatment of that part of the subject is full and careful, however inept. The aga (see p. 210, 1. 30) is Harvey: and the first blank must therefore be supposed to cover the incidents of the fight from Paracelsus to Harvey, and the second blank those from Harvey downwards.