Fred T. Hodgson · Frederick J. Drake and Co. · leaf 493
e tothe beater, owing to the paste which is used in mount-ing them. Corrections of the surface are then madeby leveling it with block and hammer. The filling ofthe joints and cleaning of the surface is a delicate op-eration, as the looks of this work depends largely uponit. The joints are to be… … ^-CONCRETE Fig. 39. filled, the surplus cement is removed from the sur-face by drawing a wet piece of canton flannel over it.