modern learning: a book, never to be sufficiently valued, whether we consider the happy turns and flowings of the author's wit, the great usefulness of his sublime discoveries upon the subject of flies and spittle, or the laborious eloquence of his style. And I cannot forbear doing that author the justice of my publick acknowledgements, for the great helps and liftings I had out of his incomparable piece, while I was penning this treatise.
But, beside these omissions in Homer already mentioned, the curious reader will also observe several defects in that author's writings, for which he is not altogether so accountable. For whereas every branch of knowledge has received such wonderful acquirements since his age, especially within these last three years, or thereabouts; it is almost impossible, he could be so very perfect in modern discoveries, as his advocates pretend. We freely acknowledge him to be the inventor of the compass, of gun-powder, and the circulation of the blood: but, I challenge any of his admirers to show me, in all his writings, a complete account of the spleen; does he not also leave us wholly to seek in the art of political wagering? What can be more defective and unsatisfactory, than his long dissertation upon tea? And as to his method of salivation without mercury, so much celebrated of late, it is, to my own knowledge and experience, a thing very little to be relied on.
It was to supply such momentous defects, that I have been prevailed on, after long solicitation, to take pen in hand; and I dare venture to promise, the judicious reader shall find nothing neglected here, that can be of use upon any emergency of life.
