24. Whether Heat or Damps give any assurance or a probability of finding a Mine?
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 they 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?