All changes in assessments authorized by the board of review, and reasons therefor, shall be entered in the minute book kept by said board and on the assessment roll. Said minute book shall be filed with the assessor after the adjournment of the board of review and shall at all times be open to public inspection. In case the value of any specific property or the entire assessment of any person, partnership, or association is increased, or new property is added by the board, the clerk shall give immediate notice thereof by mail to each at the post office address shown on the assessment rolls, and at the conclusion of the action of the board therein the clerk shall post an alphabetical list of those whose assessments are thus raised and added, in a conspicuous place in the office or place of meeting of the board, and enter upon the records a statement that such posting has been made, which entry shall be conclusive evidence of the giving of the notice required. The board shall hold an adjourned meeting, with at least five days intervening after the posting of said notices, before final action with reference to the raising of assessments or the adding of property to the rolls is taken, and the posted notices shall state the time and place of holding such adjourned meeting, which time and place shall also be stated in the proceedings of the board.