TO THE
Royal Society.
In these Rude Collections, which are onely the Gleanings of my private diversions in broken hours, it may appear, that many Minds and Hands are in many places industriously employed, under Your Countenance and by Your Example, in the pursuit of those Excellent Ends, which belong to Your Heroical Undertakings.
Some of these are but the Intimations of large Compilements. And some Eminent Members of Your Society, have obliged the Learned World with Incomparable Volumes, which are not herein mention'd, because they were finisht, and in great Reputation abroad, before I entred upon this Taske. And no small Number are at present engaged for those weighty Productions,
which