237 12 the one side also, there is a limit to the multiplication of the slender shaft, in the inconvenience of the narrowest interval: on the other, a limit to the expansion of the massy shaft in the inconvenient space taken from the width of the building. Between these extremes the architects choice will be regulated by his intention of graceful or grand expression; remembering always that it is best to lean towards the side of grandeur because constructively strength and material are always lost by sub division of substance in the shafts; and that arrangement of proportion will generally be the best which is a natural and rational mean between the two ex- tremes, after due consideration of the materials both of the shafts and superstructure. For of course more slender shafts may be safely used when they can be cut out of a tough stone than of a brittle one; and when they can be cut out of a single block, than when they must be made of many pieces; All these circumstances must be known before as well as the Expressional intention, before we can say whether such and such a shaft is truly proportioned or not and there is literally an infinite license of various proportion correspondent to the infinite charges of such circumstances but there is in everycase, supposing them all known
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