is other people’s business, not Ulac’s.  He cannot pass, however, the defamation of himself inserted in Milton’s book.—­Ulac then quotes the substance of Milton’s account of him as once a swindler and bankrupt in London, then the same in Paris, &c. (Vol.  IV. p. 588).  This information, Ulac has little doubt, Milton has received from a particular London bookseller, whom Ulac believes also to have been the real publisher of Milton’s book, though Newcome’s name appears on it.  It is all a tissue of lies, however, and Ulac will meet it by a sketch of his own life since he first dealt in books.  This takes him twenty-six years back.  It was at that time that, being in Holland, which is his native country, and having till then not been in trade at all, he received from England a copy of the Arithmetica Logarithmica of the famous mathematician Henry Briggs [published 1624].  Greatly enamoured with this work and with the whole new science of Logarithms, and observing that Briggs had given the Logarithms for numbers only from 1 to 20,000, and then from 90,000 to 100,000, he had set himself to fill up the gap by finding the Logarithms for numbers from 20,000 to 90,000, and had had the satisfaction, in an incredibly short space of time, of bringing out the result [in an extended edition of Briggs’s book published at Gouda, 1628].  Briggs and the English mathematicians were highly gratified, and Ulac was asked to publish also Briggs’s Trigonometria Britannica.  This also he had done [at Gouda in 1633, Briggs having died in 1630, and left the work in charge of his friend Henry Gellibrand]; after which he had engaged in the heavy labour of converting into Logarithms the Sines and Tangents to a Radius of 10,000,000,000 given in the Opus Palatinum, and had issued the same under the title Trigonometria Artificialis.  These labours of Ulac’s were not unknown to the mathematical world; and it was somewhat surprising that Milton had not heard of them, especially as, in his sketch of his own life in the Defensio Secunda, he professed his interest in Mathematics, and spoke of his visits to London from Horton for the purpose of picking up any novelties in that science.  At any rate, it was zeal for the dissemination of the mathematical books above-mentioned that had turned Ulac into a printer and bookseller.  In that capacity he certainly had been in London, trading in books generally, and he had been in difficulties there, though not of a kind discreditable to himself.  After he had been some years in London, trading peaceably, some London booksellers, jealous for their monopoly, had conspired against him, and tried to obtain an order from Archbishop Laud for the confiscation of his whole stock in trade.  Through the kind offices of Dr. Juxon, Bishop of London, this had been prevented, and he had been empowered to sell off his existing stock.  Nay, a little while afterwards, he had had a prospect, through the Royal Printers, of a full