compouned by two and two, where-as some almikanteras in
sondry Astrolabies ben compouned by on and on, or elles by two
and two, it is necessarie to thy lerning to teche thee first to knowe
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and worke with thyn owne instrument. Wher-for, whan that the
degree of thy sonne falleth by-twixe two almikanteras, or elles yif
thyn almikanteras ben graven with over gret a point of a compas,
(for bothe thise thinges may causen errour as wel in knowing of
the tyd of the day as of the verrey assendent), thou most werken
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