N.H. Rev. Stat. Ann. § 24:9-d

The clerk of the convention, or his or her designee, shall mail to each member of the convention a notice stating the time, place and purpose of further meetings at least 7 days before the day of the meeting and shall cause to be published a like notice at least 7 days before the day of the meeting in a newspaper of general circulation in the county. Mailing such notice is not required during any session of the general court, if the notice is printed for 2 legislative days in the journal of the house of representatives.