in which is shewn an easy and expeditious method of making them, superior to the best natural ones, and also, a way of improving the natural ones and of changing or converting their poles. Diretions are likewise given for making the mariner's needles in the best form, and for touching them most advantageously, etc

in qua affectiones generales telluris expliantur ...

In quo exhibentur quotquot hactenus inventae sunt, quae vel sponte proveniunt, vel in agris feruntur : Una cum Synonymis selectioribus, locis natalibus & observationibus quibusdam oppido raris : Adjiciuntur in gratiam tyronum, Index Anglico-latinus, Index locorum Etymologia nominum, & Explicatio quorundam terminorum

a popular, a mathematical, a mechanical, and a philosophical treatise : to which are added remarks upon the whole