
108 U.S. 510 (____)
WESTERN PACIFIC RAILROAD COMPANY & Another
v.
UNITED STATES.
Supreme Court of United States.

APPEAL FROM THE CIRCUIT COURT OF THE UNITED STATES FOR THE DISTRICT OF CALIFORNIA.
Mr. Henry Beard for the appellants.
Mr. Assistant Attorney-General Maury for the United States
*511 MR. JUSTICE MILLER delivered the opinion of the court.
John M. Coghlan, district attorney of the United States for the District of California, on behalf of the United States, brought the bill in this case in the circuit court of that district against the Western Pacific Railroad Company and Charles McLaughlin to set aside a patent of the United States conveying to the railroad company the northeast quarter of section 29, township one (1) north, range one (1) east, of Mount Diabolo meridian.
This patent was made under the acts of Congress granting *512 lands to the Union Pacific, Central Pacific, and Western Pacific Railroad Companies, to aid in building a road from the Missouri River to the Pacific Ocean.
The acts of Congress granted to each company the alternate sections within certain limits on each side of its road, and authorized the issue of patents for the same when the work was done and the sections ascertained. But they excepted out of this grant, among others, such sections or parts of sections as were mineral lands.
The bill in this case alleges, as the reason for vacating and setting aside the patent, that the quarter-section in question is mineral land, that it was so at the time of the grant, and was known to be so when the patent issued, which was so issued without authority of law by inadvertence and mistake.
The patent itself is not in the record as an exhibit, or as part of the evidence. The Western Pacific Railroad Company, to whom it was issued, though made defendant in the bill, was not served with the subpna and did not appear. McLaughlin, the only defendant who did appear, defends as purchaser two degrees removed from the company. Instead of a general replication to McLaughlin's answer, the reply is an amendment to the original bill.
The whole record is so imperfect and the case so obscurely presented, that we feel tempted to dismiss it.
Waiving, however, these objections, there is enough to enable us to consider the two principal errors assigned by appellant.
The first of these is that there is no sufficient evidence that the suit was instituted under the authority of the Attorney-General, according to the principle established in the case of United States v. Throckmorton, 98 U.S. 61.
To this it may be answered that the objection was not raised in this case in the court below, as it was in that; that the case is argued in this court on behalf of the government by the Assistant Attorney-General, who files in the court a certified copy of the order of the Attorney-General directing the district attorney to bring the suit in the circuit court, as requested by the Secretary of the Interior.
We think the decree of that court, under these circumstances, *513 can hardly be reversed now, on this ground, taken here for the first time.
The other objection to the decree in favor of the United States is that the evidence does not establish as a fact that the land in controversy was mineral land when the patent issued.
An examination of the evidence on this subject convinces us that the circuit judge was right in holding that it was. It is satisfactorily proven, as we think, that cinnabar, the mineral which carries quicksilver, was found there as early as 1863, that a man named Powell resided on the land and mined this cinnabar at that time, and in 1866 established some form of reduction works there; that these were on the ground when application for the patent was made by defendant McLaughlin, as agent of the Western Pacific Railroad Company, and that these facts were known to him. He is not, therefore, an innocent purchaser. Concurring as we do with the circuit court in the result arising from the evidence, we do not deem it necessary to give in this opinion a detailed examination of it.
This being the first case of the kind in this court, a class of cases which may possibly be indefinitely multiplied, it is to be regretted that it was not more fully presented in the circuit court. Many interesting questions might arise in this class of cases not proper to be considered in this case. For instance, the nature and extent of mineral found in the land granted or patented which will bring it within the designation of mineral land in the various acts of Congress, in which it is excepted out of grants to railroad companies and forbidden to be sold or pre-empted as ordinary or agricultural lands are.
Suppose that when such land has been conveyed by the government it is afterwards discovered that it contains valuable deposits of the precious metals, unknown to the patentee or to the officers of the government at the time of the conveyance, will such subsequent discovery enable the government to sustain a suit to set aside the patent or the grant? If so, what are the rights of innocent purchasers from the grantee, and what limitations exist upon the exercise of the government's right? We can answer none of these questions here, and can only
Order that the decree below be affirmed.
