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The Niners and Broncos held the first of two straight joint practices before playing an exhibition game here Saturday night.

That the vestibule was not built when the early part of the choir was finished is evident, as "its walls abut against those of the choir with a straight joint, and the arch of entrance in the side aisle is a manifest intrusion into the space once occupied by a window."

After the ‘boxes’ are put together, the top layer of pisé should be loosened with a pick so as to form a bond with the section about to be built, and if this section adjoins one already built, the ends of the latter should be bevelled off so as not to form a straight joint.

Moreover, where it meets the tower there seems to be a ‘straight joint,’ which indicates that these bays are at any rate later than the tower piers.

If it is necessary to bring other work close up, a straight joint should be used.