Note 101 — HISTORICAL INTRODUCTION. (continued 2)

The Records of Physic, if I am not deceived, will afford numerous instances of similar error, from mistaking figurative expressions for literal truths. A knowledge of this species of fallacy will explain the origin of several very extraordinary receipts. I shall select the following instance, by way of illustration. In many of the ancient works on Physic, we find the blood of the goat extolled for its efficacy in dissolving stones, and, from this supposed lithontriptic virtue, it forms the principal ingredient of the Powder of Nicolaus, and of the Electuary of the Queen of Colein. The expression which gave origin to this belief was evidently allegorical, signifying that the blood of the goat, by which our Saviour was typified, was capable of softening the stony hearts of his enemies, or, according to others, that by his influence, the stony rocks, and veil of the temple were shatterd. Browne’s Vulgar Errors.