A short discouerie of the vnobserued dangers of seuerall sorts of ignorant and vnconsiderate practisers of physicke in England: profitable not onely for the deceiued multitude, and easie for their meane capacities, but raising reformed and more aduised thoughts in the best vnderstandings: with direction for the safest election of a physition in necessitie: by Iohn Cotta of Northampton Doctor in Physicke.