The homestead of every citizen entitled to such an exemption who shall not select or who has improperly selected his homestead by declaration, shall be, namely: A tract of land in the form of, first, a square, or second, a parallelogram, if practicable, and composed, if practicable, of contiguous parcels, and including the dwelling house, and, if practicable, the other principal buildings, and not to exceed one hundred sixty (160) acres in area, nor Seventy-five Thousand Dollars ($75,000.00) in value. And in all cases where the homestead may be composed of detached parcels of land, it shall be made up of those nearest the forty (40) acre or other less tract containing the dwelling house.