Optique

One Symoy, an optique inſtrument‐maker, found the first of thoſe inſects as he was ſearching for polypes; which gave me ſince an occaſion of examining ditch‐water, where I not only found the plant, but the crown’d inſect, and a good many other ſurpriſing little things, of all ſhapes and faſhions, of which I will take the liberty to ſend you an account.