Copyright Goodheart-Willcox Co., Inc. 236 Section 4 Techniques 14. Continue laying the wall from the lead toward the center, one course at a time, Figure 12-39. Each brick on the second course should be centered over the cross joint of the first course. The cross joints must be of uniform width or the closer brick (the last brick laid in the course) will not fit correctly. The course should be laid from both leads toward the center. Level, plumb, and line up this course as you lay it. P R O C E D U R E (continued) Author’s images taken at Job Corps, Denison, IA Figure 12-39. Laying the second course from both ends toward the middle. A—The mason’s line is in position. The twigs will be installed next. B—Bricks are being laid to the line. Note how the mason’s fingers are holding the brick. Also, the twig and line are being held in place using a half-brick on end. A B Author’s images taken at Job Corps, Denison, IA Figure 12-38. Laying the first course to the line. A—Install the mason’s line into the twigs to guide the line so it is flush with the top of the corner lead course. The twigs will be held in place with a half brick on top of each twig. B—Lay bricks between leads, then install closure brick to finish first course. A B