Approved medicines of little cost, to preserve health and also to cure those that are sick : provided for the souldiers knap-sack, and the country mans closet. Written by Richard Elkes Gent. Student in the art of physick, living at Bagshot in the county of Surry. - Elkes, Richard. (Printed for Robert Ibbitson and are to be sold by Tho: Vere at the Angel in the Old-Baily, 1651)