Clavis geometrica catholica. The geometrical key: or the gate of equations unlock'd: a new discovery of the construction of all equations ... not exceeding the fourth degree; viz. of, linears, quadratics, cubics, biquadratics; and the finding of all their roots ... without the use of mesolable, trisection of angles; without reduction, depression, or any other previous preparation of equations, by a circle, and any ... parabole. And this, by one only general rule ... Fortified with demonstrations / [Thomas Baker].

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Clavis geometrica catholica. The geometrical key: or the gate of equations unlock'd: a new discovery of the construction of all equations ... not exceeding the fourth degree; viz. of, linears, quadratics, cubics, biquadratics; and the finding of all their roots ... without the use of mesolable, trisection of angles; without reduction, depression, or any other previous preparation of equations, by a circle, and any ... parabole. And this, by one only general rule ... Fortified with demonstrations / [Thomas Baker]. Public Domain Mark. Source: Wellcome Collection.