Page:Philosophical Transactions - Volume 001.djvu/349

 25. Whether Water of any kind, met with in Digging, especially at this or that depth, do betoken a Mine?

26. Whether there be any Signs of the neerness of the Mine, and what they are?

27. Whether there be any Signs of ones having miss'd the Mine, either by being past above, or beneath, or having left it on either hand; and what they are?

28. Whether there be any Signs not only of the distinct and determinate kind of Metals or Minerals; but of the Plenty and Goodness of the Vein; and what the are?

29. Whether there be any Signs of the depth of the Vein beneath the surface of the Earth; and what they are?

30. Whether there be any proper or peculiar Signs, that show it to be hopeless, or at least unlikely, to find a Vein in the place where it is digg'd for; and what those are?

About the fourth Title.

31. What is the depth of the Shaft or Groove (which though named in the singular Number, the questions about it are generally applicable) till you come at the Vein or Ore?

32. Whether the Vein run or lye Horizontal, or dippe? And if it dippe, what inclination it hath, how deep the lowest part lies; and consequently how much deeper than the uppermost? As also, what it's Flexures, if it have any, are? And whether it runs directly North or South, East or West; or seem rather to have a Casual tendency, than any determinate one by Nature? and how far it reaches in all?

33. What is the Wideness of the Groove at the Top, and elsewhere? Whether the Groove be perpendicular or crooked; and if crooked, after what manner, and with what distance it winds?

34. How the Groove is supported? What are the kinds, length, bigness, and way of placing the Timber, Poles, &c. that are employed to support it? And how long the Wood will last, without being spoyled with the subterraneous fumes and waters? and what wood lasts longest? Rh