IN some you see all distempers of women collateral to their pregnancy, which is certainly a very necessary and an infinitely extensive subject, while on the practical article of the deliverance they give you nothing but what is barren, jejune, or even false. Others, by way of filling up, run digressively into a discussion of the methods of treating infants. Others again have written only to recommend some pretended secrets, as powders, preparations, &c. Some have swelled their volumes with the more or less commodious structure of a couch, or the mechanism of a close-stool, or the make of different sorts of syringes for anodine injections. In others you meet with remedies for the deformities of the human body, for the contractions or stiffnesses of the muscles of the shoulders, arms, hands, legs, feet, thighs, haunches, &c. to straiten the crooked, and even, in a treatise on midwifery, to extirpate a polypus from the nose. Others, with all the parade of justly exclaiming against nostrum-mongers, the plausible writing against which serves at once to fill up, and give them an air of superiority to such trumpery, substitute however nothing better of their own than the recommendation of some instrument, which they give you for a master-piece of invention; and to establish which, they cry down every instrument of other practitioners, though not one jot inferior to it in any thing, but the not being the newest. Thus, after having perused such a multiplicity of authors, it is incredible to say how little true, or practically useful knowledge is to be picked out of the whole mass of them. You find almost every thing in them but what you are looking for.