What the Honourable _Robert Boyle_ gave the Reader cause to hope for, in _Numb_. 11. when he was pleased to impart those _General Heads_ for a Natural History of a Country, _there_ publish'd; He is not un-mindful to perform, by enlarging them as occasion serves, with _Particular_ and _Subordinate_ Inquiries. Here he gratifies the Curious with a considerable Set of Inquiries about _Mines_: which though unfinish'd, yet the _Publisher_, was instant to obtain their present Publication, to the end, that he might the more conveniently recommend them to several Forreigners of his Acquaintance, now ready to return to their several Countryes, which he understands to abound in Mines; and from the Curious Inhabitants whereof, he expects to receive a good Accompt upon some at least of these Inquiries; which also by several of them have been earnestly desired, as Instructions, to direct them, what Particulars to inquire after upon this Subject. These Quaeries are reduced by the _Author_ to six Heads: The _first_, The neighbouring Country about the Mines. The _second_, The Soyl where the Mines are. The _third_, The Signs of Mines. The _fourth_, The Structure and other particulars belonging to the Mines themselves. The _fifth_, The Nature and Circumstances of the Ore. The _sixth_, the Reduction of the Ore into Metal. {331} _QUAERIES_ _About the first Title._ 1. Whether the Country be Mountainous, Plain, or distinguish'd with Vales? And in case it be mountainous, what kind of Hills they are; whether high, or low, or indifferently elevated? Whether almost equal or very un-equal in height? Whether fruitful or barren; cold or temperate; rocky or not; hollow or solid? Whether they run in ridges, or seem confusedly placed; and, if the former, what way the ridges run, North and South, &c. And whether they run any thing parallel to one another? 2. Whether the Country be barren or fruitful? And, if any way fruitful, what it produces, and what it most abounds with? 3. What Cattle it nourishes, and whether they have any such thing peculiar in point of bigness, colour, shape, longaevity, fitness or unfitness to make good meat, &c. as may be rather adscribed to the peculiar nature of the place, than to the barrenness of the Soyl, or other manifest causes? 4. Whether the Natives, and other Inhabitants, live longer or shorter than ordinary? Whether they live more or less healthy? Whether they be subject to any _Epidemical_ Diseases, that may very probably be imputed to the Mines; and what these Diseases are; and what Remedies are found successful? 5. Whether the Country be, or be not furnish'd with Rivers, Brooks, Springs, and other Waters; and how these waters are conditioned?