Summary

Portrait of David Josiah Brewer 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.
Source: Wikisource

Portrait of David Josiah Brewer David Josiah Brewer Sullivan v. Iron Silver Mining Company…

But a placer patent conveys to the patentee full title to all lodes or veins within the territorial limits not then known to exist; so it matters not what developments or discoveries were made by these defendants after the issue of the patent. Nothing then disclosed could limit the effect of the patent, or except from its scope any vein or lode within its territorial limits
Source: Wikisource

Get perspective with Kwize: daily news enlightened by great literature