An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 650
Fig. 691. Fig. 602. Other cases of larger span, it is oftun desirable that the common rafters .should not standabove the principals, and then the purlines are framed by mortices and tenons into theprincipals, as shown at A, jig. 69)2.. wlierein the line be shows the underside of tiiecommon rafters…
Architecture · Architects
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