When such shade-tree commissioners, or park commissioners so acting, shall propose the setting out or planting or removing of any shade-trees, or the material changing of the same in any highway, they shall give public notice of the time and place appointed for the meeting at which such contemplated work is to be considered, specifying in detail the highways, or portion thereof, upon which trees are proposed to be planted, removed, or changed, in one or more--not exceeding two in all--of the newspapers published in said township, borough, or city, once each week for at least two weeks, prior to the date of said meeting.
53 P.S. § 3294