A mathematical miscellany in four parts [electronic resource] : I. An essay towards the probable solution of the forty-five surprising paradoxes, in Gordon's Geography. II. Fifty-Five New and Amazing Paradoxes, some in Verse, some in Prose, with their Solutions. III. Answers, to the Hundred Arithmetical Problems, left unanswer'd in Hill's Arithmetick, and Alexander's Algebra. IV. Miscellaneous Rules about forming Aenigma's, Questions, the Doctrine of Eclipses, of Pendulums, the Equation of Time, concerning Easter, &c. By a lover of the mathematicks.