er A i^dcfcribe an arkof a circled B N. The fame femidiameter will fet of 60 gr.from B vnto «£for the South end, and other 60 gr.from B vn-to N for the North end of the Bow: fo the whole Bow willcontain e 12o^r,the third part of a circle. Let it therefore bediuided into fo many degrees, and each… … A The Bow being thus diuided and numbred, you may feethe moneths and cbyes of each moneth vpon the backc^and ikch The defctiptfo# of the Btrv. fuchftarres a$arc fit for obferuation vpon the fide of theBow, If you defue to make vfe of it in North latitude, you maynumber 23 gr.-$o m. from 90 towards…
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