Steve Lelievre wrote >I've read of the method of equal >shadow lengths for finding south and I image that also works on a vertical >due South wall, but I can't see it working for a declining wall.
Plot the local meridian out on the ground using 'equal angles of the sun' adjacent to the wall. Transfer the plane of the meridian to the gnomon using a plumbline from the meridian on the ground or any line parallel to the original plat. Tony Moss
