Section 66
SEC. 66. Whenever any province, municipality, or other branch or subdivision of the Government shall need any portion of the lands of the public domain open to concession for educational, charitable, or other similar purposes, the Governor-General, upon recommendation by the Secretary of Agriculture and Natural Resources, may execute contracts in favor of the same, in the form of donation, sale, lease, exchange, or any other form, under terms and conditions to be inserted in the contract; but land so granted shall in no case be encumbered or alienated, except when the public service requires their being leased or exchanged, with the approval of the Governor-General, for other lands belonging to private parties, or if the Legislature disposes otherwise.