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230 above, there is towards the end of the volume a description of the instruments and buildings at Hveen, with woodcuts of the latter. Of the instruments, seven were already figured in Tycho's other books, and it appears that to a few copies of the Epistolæ he added an appendix of eleven leaves, with figures of some of the instruments, and on the last leaf a short note promising that a complete account of all of them should soon appear. This appendix was doubtless only printed in a very few copies, as it was soon to be rendered superfluous by the publication of Tycho's special book on his instruments.

While the printing of Tycho's correspondence was being completed important events took place in Denmark. Tycho's last remaining influential friend, Jörgen Rosenkrands, died in April 1596, and the young king, who was now in his twentieth year, was soon afterwards declared of age, and was crowned on the 29th August at Copenhagen. He had appointed Christian Friis of Borreby, Chancellor, and Christopher Valkendorf to the office of High Treasurer, which had been vacant since the death of Tycho's connexion, Peder Oxe, in 1575; but King Christian had both the will and the ability to govern himself, and soon made his authority felt and respected. He was personally of an