At all events, whether written by Hariot before or after the deed, it is a precious contemporary document, and is another proof, if any more be needed, of the genuineness of the reported dying speech, and, consequently, that the famous ‘Spanish papers’ recently reproduced are forgeries and false. It requires no great stretch of the imagination with this little messenger in hand to believe that the ingenious teacher and friend of his youth, and for nearly two score years the constant companion of his manhood, passed that dreadful night with Sir Walter in the Gate House at Westminster, and after ‘dear Bess’ had taken her leave at midnight, penned out this note of remembrance for his friend’s morning guidance, that nothing should be forgotten in case the ague returned, which he feared even more than death. A little more than a month after the execution of his friend, Hariot is found in his observatory at Sion taking observations of the comet of December 1618. His valuable observations are preserved among his mathematical papers. During the eleven years following his primitive observations of the ‘Hariot’ comet of 1607, first at Ilfracombeand later at Kidwely, great advances had been made in the science of astronomy, chiefly in consequence of the invention of the telescope, and the discoveries by means of it. No mathematician in Europe was probably further advanced in this science than Hariot. What particular discoveries belonged to him and what to Galileo, Kepler and other contemporaries, it is very difficult to determine, since it is now positively known that from 1609 or 1610 Hariot was a manufacturer and dealer in lenses, or perspective glasses, as well as in perspective trunks or telescopes; and that he was in correspondence with Kepler, and probably with Galileo. He was easily the chief of astronomers in England, and is known to have possessed the earliest books of Galileo and to have sent them to his disciples, Lower and Protheroe, in Wales. Respecting this comet of 1618, he was in correspondence with Alien and Standish of Oxford and other scholars at home and abroad. In ‘Certain Elegant Poems, Written By Dr. [Richard] Corbel, Bishop of Norwich. R. Cotes for Andrew Crooke, 1647, 16°- The mirth-loving Bishop, in ‘A Letter sent from Doclor Corbetto MaJler [Sir Thomas] Ailebury, Decem. 9. 1618’ [on the Comet of that year] is the following allusion to Hariot: