Magistery

[T]hey made proofe of the ſaid flowers dried, and this high magiſterie they found, That being beaten to pouder, they cured thoſe of the bloudie flix,^([sic – meaning flux]) vvho lay at the very point of death upon that diſeaſe; […]

[…] I have been here long enough, if I were matter capable thereof, to be made the Philoſophers Stone, to be converted from VVater to Povvder, vvhich is the vvhole Magiſtery: I have been beſides, ſo long upon the Anvil, that methinks I am grovvn malleable, and hammer-proof: I am ſo habituated to hardſhip.

This wanton Information being over, Daphnis, who had ſtill a Childish Pastorall mind, would presently be gone, and run up to Chloe, to have an experiment with her, how much he had profited by that magistery, as if indeed he had bin afraid lest staying but a little longer, he could forget to do his trick.

But yet farther, Gain aſſurance of thy Peace with God in Chriſt, and conſequently of thy future Happineſs; and be frequent in the Contemplation and Improvement of it. This is the great Engine of a Chriſtian, a Magiſtery that was never attained by the moſt exquiſite Philoſopher, nor is attainable but in and by the knowledge of Chriſt, who brought Life and Immortality to light: […]

Some elements were conquerors, some conquered; there existed preparations which possessed the power of changing the whole of a body of a substance of another kind: these were called magisteries.

magistery of bismuth (BiONO₃·H₂O)

I am apt to think, that either Simples, or cheap, or unelaborate Galenical Mixtures, may furnih us vvith Specificks, that may perform much more than Chymiſts are vvont to think, and poſſibly be preferable to many of their coſtly Magiſteries, Quint-eſſences and Elixirs. […] The more Judicious of the Chymiſts themſelves do ſeveral of them novv acknovvledge, that the bare reducing of Pearls to fine Povvder, affords a Medicine much richer in the Vertues of the Pearls, then the Magiſtery, prepar'd by diſſolving them in acid Spirits, and precipitating them vvith Oyl of Tartar, and aftervvards ſcrupulously edulcorating them.

[S]ome ladies apply to what are termed coſmetics under various names, which crowd the newspapers. Of theſe the white has deſtroyed the health of thouſands; a calx, or magiſtery, of biſmuth is ſuppoſed to be ſold in the ſhops for this purpoſe; but it is either, I am informed, in part or entirely white lead or ceruffa.