David HeffernanBooksCologne compendium on air law in EuropeChronicles of LoreWalter Devereux, First Earl of Essex, and the Colonization of North-East Ulster, 1573-6Physics Contexts 1Difficult to letEarly Modern Duhallow, C.1534-1641Debating Tudor Policy in Sixteenth-Century IrelandAuthor data: Open Library