This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
The next visit finds the cellar wall completed up to grade and the excavation filled in to the natural level of the ground. While we have no reason to suspect that our instructions have not been followed in regard to facing the wall on both sides, we nevertheless have recourse to the steel rod. Thrusting it down alongside the wall at intervals we do not find any projecting stones, and as the digging away of the filling in several places shows that the wall is properly cemented on the outside we feel reasonably sure that the wall is built according to contract, and proceed to a consideration of the underpinning, the portion of the cellar wall above ground, which being visible, must be considered from the point of appearance as well as strength. A variety of materials may be used for underpinning. Long pieces of granite or freestone in one or more courses are often used, sometimes an eight-inch brick wall is built upon the stone of cellar and often the cellar wall is continued up to sill of the same character as below ground, except that instead of being careful to fill the face joints, they are left without mortar for about three quarters of an inch in depth from surface, to be filled later with Portland cement mortar, colored to taste, and rubbed with a tool made for the purpose to give either concave, V-shaped, or raised joint. It is important to see that the underpinning is carried up to the sill the full thickness of the wall, leaving out spaces for girders, with the top carefully levelled off at the bottom of the sill.