eat part of its weight at once to the heads of the main — 1 ; — ! — E shafts, and relieving from its pressure the centres of the arches. j in. The new shaft thus introduced may either remain lifted on the head of the great shaft, or may be carried to the ground in front of it, or _ ! y through it,… … central shaft, and the main pier splits into two minor shafts on its sides, the principle is Classical or Palladian, e, Fig. XXXVI. Which latter ar- rangement becomes absurd or unsatisfactory in proportion to the sufficiency of the main shaft to carry the roof without the help of the minor shafts…
Architecture
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