Crymogaea sive rerum Islandicarum… is a very rare history of Iceland by Arngrimur Jónsson, a scholar and teacher also known as Arngrimur the Learned.
It was first published in Hamburg in 1609 but that was not the first time that its author had taken up his pen to record his homeland’s history and challenge the writings of others.
In 1593 he had published Brevis commentarius de Islandia, in which he criticised the works of numerous authors. A principal target was Gories Peerse, a merchant who had written an entertaining but somewhat slanderous poem about the island’s geography and ethnography, but Arngrimur was not shy of attacking such well-known and substantial works as Münster’s Cosmographie.