SECTION 1. Section one of Act Numbered Two hundred and seventy-nine, entitled "'An Act prescribing the method of executing leases of real estate to or by the Insular Government," as amended by section one of Act Numbered Fifteen hundred and three and section one of Act Numbered Fifteen hundred and twenty-five, is hereby further amended so as to read as follows:
"SECTION 1. All deeds and leases of houses and other real estate to or other contracts for the use and occupancy of property made to or by the Insular Government or any Department or Bureau thereof shall he executed for and in behalf of the Insular at by the Governor-General, except as hereinafter provided to wit:
"(a) Leases of portions of the San Lazaro estate under the provisions Executive Order Number seven, series of nineteen hundred and one, as amended, shall be executed by the Director of lands, by and with the approval of the Secretary of the Interior.
''(b) Leases of portions of the public domain under the provisions of Act, Numbered Nine hundred and twenty-six, known as 'The Public Land Act,' and deeds and leases under Act Numbered eleven hundred and twenty, known as 'The Friar Lands Act,' shall be executed by the Director of Lands, with the approval of we Secretary of the Interior.
"(c) Contracts and leases for cold-storage space in the division of cold storage, Bureau of Supply, shall be executed by the Purchasing Agent, with the approval of the Secretary of Public Instruction."