Friendly Missive of an Adept of Hermetic Science and Art

My friendly greeting first, honored dear gentlemen, etc. The author uses a standard formal salutation of the period, likely addressing the Hermetic society or the pair of scholars mentioned in the preface.

It has not yet been two months since I, for the first time in my entire life, arrived in London, the world-famous capital of the English Kingdom— The author describes London as a "world-famous capital," reflecting its status in the late 17th century as a hub for both international trade and the "New Philosophy" of the Royal Society.