_The third Direction._—The true one is of a larger Letter than the counterfeit ones, which are in _Twelves_, &c., of the Letter small Bibles used to be printed on. I shall now speak something of the book itself. All other Authors that have written of the nature of Herbs, give not a bit of reason why such an Herb was appropriated to such a part of the body, nor why it cured such a disease. Truly my own body being sickly, brought me easily into a capacity, to know that health was the greatest of all earthly blessings, and truly he was never sick that doth not believe it. Then I considered that all medicines were compounded of Herbs, Roots, Flowers, Seeds, &c., and this first set me to work in studying the nature of simples, most of which I knew by sight before; and indeed all the Authors I could read gave me but little satisfaction in this particular, or none at all. I cannot build my faith upon Authors’ words, nor believe a thing because they say it, and could wish every body were of my mind in this,—to labour to be able to give a reason for every thing they say or do. They say Reason makes a man differ from a Beast; if that be true, pray what are they that, instead of reason for their judgment, quote old Authors? Perhaps their authors knew a reason for what they wrote, perhaps they did not; what is that to us? Do we know it? Truly in writing this work first, to satisfy myself, I drew out all the virtues of the vulgar or common Herbs, Plants, and Trees, &c., out of the best or most approved authors I had, or could get; and having done so, I set myself to study the reason of them. I knew well enough the whole world, and every thing in it, was formed of a composition of contrary elements, and in such a harmony as must needs show the wisdom and power of a great God. I knew as well this Creation, though thus composed of contraries, was one united body, and man an epitome of it: I knew those various affections in man, in respect of sickness and health, were caused naturally (though God may have other ends best known to himself) by the various operations of the Microcosm; and I could not be ignorant, that as the cause is, so must the cure be; and therefore he that would know the reason of the operation of the Herbs, must look up as high as the Stars, astrologically. I always found the disease vary according to the various motions of the Stars; and this is enough, one would think, to teach a man by the effect where the cause lies. Then to find out the reason of the operation of Herbs, Plants, &c., by the Stars went I; and herein I could find but few authors, but those as full of nonsense and contradiction as an egg is full of meat. This not being pleasing, and less profitable to me, I consulted with my two brothers, DR. REASON and DR. EXPERIENCE, and took a voyage to visit my mother NATURE, by whose advice, together with the help of DR. DILIGENCE, I at last obtained my desire; and, being warned by MR. HONESTY, a stranger in our days, to