A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 37
(a) a … Fig. 1G. (/^). The softer soil d is then removed and leveled off, as at/; //>, and a bed of concrete about 3 feet thick, as shown at c,is then put down, the concrete being brought to the level ofthe rock, and on this the brick or stone foundation wall (/ isbuilt. 54. It is not considered…
Architecture · Building
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