"The properties of the spiral and the quadrature of the parabola were added to ancient geometry by Archimedes, the last being a great step in the progress of the science, since it was the first curvilineal space legitimately squared."

The quadrature of a circle, the philosopher's stone, and the next way to the Indies.

quadrature, quadrifoil, quadriform, quadruplet; quatrefoil.

angular measurement, angular elevation, angular distance, angular velocity; trigonometry, goniometry; altimetry^; clinometer, graphometer^, goniometer; theodolite; sextant, quadrant; dichotomy. triangle, trigon^, wedge; rectangle, square, lozenge, diamond; rhomb, rhombus; quadrangle, quadrilateral; parallelogram; quadrature; polygon, pentagon, hexagon, heptagon, octagon, oxygon^, decagon. pyramid, cone.

[Symbol: Jupiter] in [Symbol: Quadrature]

[Symbol: Quadrature] radio percussus fuerit, natus ab insania vexabitur. 1288.

He was sometimes unluckily engaged in disputes with ladies, with whom algebraick axioms had no great weight, and saw many whose favour and esteem he could not but desire, to whom he was very little recommended by his theories of the tides, or his approximations to the quadrature of the circle.

In the quadrature of curves, the method of exhaustions was most ancient,whereby similar circumscribed and inscribed polygons, by continually increasing the number of their sides, were made to approach the curve until the space contained between them was exhausted, or reduced to an inappreciable quantity.

"Jupiter nearest the nonagesimal had passed by four degrees the trine of Saturn; the Sun and Venus in conjunction were moving from the latter towards the former, nearly in sextiles with both: they were also removing from quadratures with Mars, to which Mercury was closely approaching: the moon drew near to the trine of the same planet, close to the Bull's Eye even in latitude.

That there was this triple configuration on that daynamely the sextile of Saturn and the Sun, the sextile of Mars and Jupiter, and the quadrature of Mercury and Mars, is proved by the change of weather; for after a frost of some days, that very day became warmer, there was a thaw and a fall of rain."