Letter from Editor of the Pamphleteer to the Author of Exportation asking for his name in order to publish the piece. Also a draft of Manning's reply, refusing to supply the name. Dated 17 April 1818. Handwritten, 1 piece, 1 side. "A Letter on The True Principles of Advantageous Exportation" was published in the Pamphleteer, Vol XII, 1818.