An appointment to an office by the governor by and with the advice and consent of the senate, shall be made by communicating to the senate, while in session, a written nomination of a person for the office, designating the residence of the nominee, and if nominated to be an officer of a political subdivision of the state, designating also such subdivision, and if nominating two or more persons to the same office for different terms, designating the term for which each is nominated. If such nomination be of a successor to a predecessor in the same office, it may be made and acted upon by the senate after the expiration of the term or occurrence of a vacancy in the office of such predecessor, or at any time during the legislative session of the calendar year in which the term of office of such predecessor shall expire or in which the office shall become vacant. If the appointment be made before the expiration of the term of such predecessor, the term of office of the appointee shall commence upon the expiration of the term of such predecessor, or if made to fill a vacancy, upon the occurrence of such vacancy, or immediately if a vacancy already exist. If the senate shall reject such nomination, the secretary of the senate shall forthwith communicate, by writing, signed by him and by the president of the senate, to the governor the fact of such rejection. If the senate shall confirm such nomination the appointment shall be deemed complete, and thereupon duplicate certificates of the confirmation shall be made and signed by the president and secretary of the senate, who shall cause one to be delivered to the governor and the other to the secretary of state, who shall record the same in his office in a book kept for that purpose.