Section 16--

That whenever any of the lands acquired by either of the * * * foregoing agreements respecting lands in the Indian or Oklahoma Territory shall by operation of law or proclamation of the President of the United States be opened to settlement they shall be disposed of to actual settlers only, under the provisions of the homestead and town-site laws, except section 2301 of the Revised Statutes of the United States, which shall not apply: Provided, however, That each settler on said lands shall before making a final proof and receiving a certificate of entry pay to the United States for the land so taken by him, in addition to the fees provided by law, and within five years from the date of the first original entry, the sum of $1.50 per acre, one-half of which shall be paid within two years; but the rights of honorably discharged Union soldiers and sailors as defined and described in sections 2304 and 2305 of the Revised Statutes of the United States shall not be abridged except as to the sum to be paid as aforesaid; and all the lands in Oklahoma are hereby declared to be agricultural lands, and proof of their nonmineral character shall not be required as a condition precedent to final entry.

And whereas allotments of land in severalty to said Cheyenne and Arapahoe Indians have been made and approved in accordance with law and the provisions of the before-mentioned agreement with them; and

Whereas the lands acquired by the said agreement hereinbefore mentioned have been divided into counties by the Secretary of the Interior, as required by said last-mentioned act of Congress, before the same shall be opened to settlement, and lands have been reserved for county-seat purposes as therein required, as follows, to wit:

For County C, the south one-half of section 19, township 16 north, range 11 west; for County D, the north one-half of section 13, township 18 north, range 17 west; for County E, the south one-half of section 15, township 17 north, range 22 west; for County F, the south one-half of