 To meet the attacks made upon the "Apology" by John Wheeler, secretary to the Merchant Adventurers' Company, Milles published a reply.With the exception of the epistle dedicatory, the preface, and the conclusion, this work consists of "A Treatise of Exchange in Merchandise and Merchandising Exchange", written about the time of the conference at Bruges (1564–65), by a merchant adventurer.Of two other of Milles's books, "A Caution against Extreamity by Farmers" (1606), and "The True Vse of Port-Bandes" (1606), there is apparently no copy in existence.