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 know in special the Latitude of our Center, I mean after the altitude of Oxenford, and the heighth of our Pole.

UNderstand well, that as farre is the head of Aries or Libra in the equinocti∣al, from our orizont, as is the synet from the pole artike, and as hye as the pole artike from the orizont, as the equinoctiall is farre from the synet: I preue it thus by the lati∣tude of Oxenford; vnderstand well that the height of our pole artike from our North orizont is 51 degrees, and 50 minutes, then is the synet from the pole artike 38 degrees, and 10 minutes, then is the equinoctiall from our synet 51 degrees, and 50 minutes, then is our South orizont from our equi∣noctiall 38 degrees, and 10 minutes. Vn∣derstand well this reckening also, forget not that the synet is 90 degrees of height from the orizont, and our equinoctiall is 90 de∣grees from our pole artike. Also this short rule is sothe, that the latitude of any planet in a region, is the distaunce from the synet vnto the equinoctiall.