Page:Tycho brahe.djvu/210



the publication, or rather the completion, of the second volume of his book Tycho pushed on the preparation of the first volume on the new star, of which the printing began long before the manuscript was approaching completion. From many direct or indirect allusions to time in various places in the book, it appears that it was written in the years 1588 to 1592, and as Tycho had several times been inconvenienced by want of paper, he resolved to build a paper-mill on the south-western coast of the island, which could be driven by the water from the fish-ponds. This mill was finished in 1589 or 1590 and the same water-wheel which turned it could also be connected with a corn-mill and machinery for preparing skins. It was, however, by no means only the want of paper which delayed the completion of Tycho's book; it had come to embrace