The works of our ancient, learned, & excellent English poet, Jeffrey Chaucer as they have lately been compar'd with the best manuscripts, and several things added, never before in print : to which is adjoyn'd The story of the siege of Thebes, by John Lidgate ... : together with The life of Chaucer, shewing his countrey, parentage, education, marriage, children, revenues, service, reward, friends, books, death : also a table, wherein the old and obscure words in Chaucer are explained, and such words ... that either are, by nature or derivation, Arabick, Greek, Latine, Italian, French, Dutch, or Saxon, mark'd with particular notes for the better understanding of their original.

To prove the Latitude of any place in a Region, by the proof of the heighth of the Pole artike in that same place.

IN some winters night, when the firma∣ment is cleere and thicke sterred, wait a time till that euery sterre fix sit line right perpendiculer ouer the pole artike, and clepe that sterre A. and wait another sterre that sit line right vnder A. and vnder the pole, and clepe that sterre F. and vnderstand well that F. is not considred but onely to declare that A. that sit euer on the pole. Take then anone right the altitude of A. from the ori∣zont, and forget it not, let A. and F. go fare∣wel till against the dawning a great while, and come then again, and abide till that A. is euen vnder the pole vnder F. for sothely then will F. sit ouer the pole, take then eft∣sones the altitude of A. from the orizont, and note as well the second altitude as the first altitude. And when that this is done, recken how many degrees that the first al∣titude A. exceeded his altitude, and take half the ilke porcion that is exceeded, and adde it to his second altitude, and take there the eleuacion of the pole, and eke the altitude of thy region. For these two been of one nom∣bre, that is to saine, as many degrees as thy pole is eleuat, so moch is the latitude of thy region. Ensample as thus, Parauenture the altitude of A. in the euening is 92 degrees of height, then will the second altitude or the dawning be 21. that is to saine, lesse than 92. that was his first altitude at euen. Take then the half of 92. and adde to it 21. that was his second altitude, and then hast thou the height of the pole and the latitude of thy region. But vnderstand well to preue this conclusion, and many another fayre conclusion, thou maist haue a plomet hang∣ing on a line higher than thy head on a perche, and that line mote hang euen per∣pendiculer betwixt the pole and thine eye, and then shalt thou see if A. sit euen ouer the pole and ouer F. at euen. And also if F. sit euen ouer the pole and ouer A. at day.