Humfrey Baker

The rules and righte ample documentes, touchinge the vse and practise of the common almanackes whiche are named ephemerides, a briefe and shorte introduction vpon the iudiciall astrologie, for to prognosticate of thinges to come, by the helpe of the said ephemerides

The vvell spryng of sciences, whiche teacheth the perfecte woorke and practise of arithmeticke ...

The well spring of sciences

Baker's arithmetick

The welspring of sciences