If the Chamber of Deputies has not given a final decision on the budget estimates before the expiration of the session devoted to the examination of the budget, the President of the Republic, in coordination with the Prime Minister shall, immediately convenes the Chamber for an extraordinary session which shall last until the end of January in order to continue the discussion of the budget; if at the end of this extraordinary session, the budget estimates have not been finally settled, the Council of Ministers may than make a decision on the basis of which a decree is issued by the President giving effect to the above estimates in the form in which they were submitted to the Chamber. However, the Council of Ministers may not exercise this right unless the budget estimates were submitted to the Chamber at least fifteen days before the commencement of its session. During the said extraordinary session, taxes, charges, duties, imposts, and other kinds of revenues shall continue to be collected as before. The budget of the previous year shall be adopted as a basis. To this must be added the permanent supplementary credits and from it must deducted the permanent credits which have been dropped, and the Government shall fix the expenditures for the month of January on the basis of the 'provisional twelfth.'of preceding year.