To knowe in speciall the latitude of oure countre, I mene after the latitude of Oxenford, and the height of oure
pool.
Understond wel that as fer is the heved of Aries or Libra in
the equinoxiall fro oure orisonte as is the cenyth fro the pool
artik; and as high is the pool artik fro the orisonte as the
equinoxiall is fer fro the cenyth. I prove it thus by the
latitude of Oxenford: understond wel that the height of oure pool
artik fro oure north orisonte is 51 degrees and 50 mynutes;
than is the cenyth fro oure pool artik 38 degrees and 10 mynutes;
than is the equinoxial from oure cenyth 51 degrees and 50
mynutes; than is oure south orisonte from oure equinoxiall 38
degres and 10 mynutes. Understond wel this rekenyng. Also forget
not that the cenyth is 90 degrees of height from the orisonte,
and oure equinoxiall is 90 degres from oure pool artik. Also this
shorte rule is soth, that the latitude of eny place in a regioun
is the distaunce fro the cenyth unto the equinoxiall.
