its length. Most of the weight carried by the wall, such as the floor joists, roof timbers, etc., rests upon the inner portion, and the headers will have the effect of throwing this weight over the whole thickness of the wall. In building upon loose or soft foundations, artificial bond, such as… … 7 . ae describe similar arcs. Draw lines from F and E, G er through C and D respectively, to G and H. Bisect the Fig. 3—THE GOTHIC ELLIPTICAL ARCH, span at K, and raise a perpendicular, K J. Then the the thermometer at 22°. One of these he covered curve may be set out from center, C, for curve A to…
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