“ART. 7.  The Rio Gila and the part of the Rio Bravo del
  Norte are made free for the navigation of vessels of both countries
  without tax.

“ART. 8.  Mexicans to remain in the ceded territory if they choose to do so, or to remove at any time to the Mexican republic, retaining the property they possess in said territories, or disposing of the same and removing the same wherever they please.  Those who remain in said territories may either retain the title and rights of Mexican citizens or acquire those of citizens of the United States; but they shall be under the obligation to make their election within one year from the date of the exchange of ratifications of this treaty; and those who shall remain in said territories after the expiration of that year, without having declared their intention to retain the character of Mexicans, shall be considered to have elected to become citizens of the United States.  Property in those territories belonging to Mexicans shall be inviolably respected, and the present owners and their heirs and those who have acquired the same shall enjoy the same, as if it belonged to citizens of the United States.

  “ART. 9.  Mexicans who do not declare themselves citizens of
  Mexico shall be incorporated in and become citizens of the United
  States under such regulations as shall be provided by law.

  “ART. 10 of the treaty was stricken out.

“ART. 11.  The United States undertakes to deliver up, if possible, any Mexicans that may be captured by any of the savage tribes within the ceded territory; and to prevent purchasing any property from any Mexican while in capture by the Indians; nor to purchase any property of any kind stolen within Mexican territory by such Indians.

“ART. 12.  In consideration of the extension acquired by the boundaries of the United States, as defined by the fifth article of the present treaty, the Government of the United States engages to pay to that of the Mexican republic the sum of fifteen millions of dollars, and prescribes the manner and times of payment.

“ART. 13.  The United States assumes the payment of all claims now due and those hereafter to become due by reason of claims already liquidated against Mexico under the treaties of April 11, 1839, and January 30, 1843.

  “ART. 14.  The United States discharges Mexico from all
  claims of citizens of the United States against said republic.

“ART. 15 provides for the appointment of a board of commissioners to adjudicate all claims against Mexico, the United States assuming the payment of such as may be allowed; the Mexican Government agreeing to furnish such books, papers, etc., as may be deemed necessary as evidence.

  “ART. 16.  The right of both parties to fortify any point in
  its territory it may deem proper.

  “ART. 17.  The treaty of April 5, 1831, and its provisions
  not inconsistent with this treaty, revived.