A collection of 65 letters written during the last two of Sidney's three years on the Continent and the first year after his return to England (June 1573-June 1576), plus another dated 10 October 1581. Authors include Jean Lobbetius (19 letters), Wolfgang Zindilini (12 letters), Andreas Paulus, Jean Vulcob, Matthew Wacker, Francis Perrot, Theophile de Banos, Zacharius Ursinus, Otto Count Solms, Fabian, Burgrave, Dr. Purkircher, Baron Slavata, and others.
Written on paper in various sixteenth-century Continental cursive and italic scripts.