David Josiah Brewer,
Sullivan v. Iron Silver Mining Company…
“ It was, so far as disclosed by this testimony, on the part of everybody, patentees included, merely a matter of speculation and belief, based not on any discoveries in the placer tract, or any tracings of a vein or lode adjacent thereto, but on the fact that quite a number of shafts sunk elsewhere in the district had disclosed horizontal deposits of a particular kind of ore, which it was argued might be merely parts of a single vein of continuous extension through all that territory. Such a belief is not the knowledge required by the section. ”
