A letter to William W. Whitmore, Esq. M.P. : pointing out some of the erroneous statements contained in a pamphlet by Joseph Marryat, Esq. M.P. entitled "A reply to the arguments contained in various publications, recommending an equalization of the duties on East and West India sugars." / - Macaulay, Zachary, (Printed for L. Relfe, and Hatchard and Son,, 1823)