By the time that the outside finish has been brought to this stage, the inside of the house will have been given over to a new set of mechanics, the lathers. The trade of lathing, although a wood working trade, is in most localities distinct from the trade of the carpenter, and the lathers will have come to the building to put on laths and nothing else. For this reason it will be well for the superintendent to see personally that all of the furring has been completed and done properly. Walls, ceilings and soffits should be carefully examined to be sure that their surfaces are true, level and plumb; chimney breasts and projections of all kinds tried with a square to see that all angles are true, corners must be examined to see that nail-ings are provided where the laths are to make an angle, and grounds and corner beads set wherever necessary for nailings, or for a finish.