A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 231
2-15 60 MASONRY. §8 h is necessary to fill up the space between them, there isdanger that the weight of masonry over b will force it down,displacing the springing stones a\ and similarly with thestones c. To prevent this, the stones a should be cut in onepiece, while those marked c should be cut so… … Fig. 60. rests on such a small footing, it is liable to separate fromthe arch, thrusting out of place some of the lower bricks.In such a case, the lower voussoir a should be cut so as toextend to the corner of the wall, until the distance ^ (^ is atleast 8 inches; more than this should be allowed…
Architecture · Building
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![An illustration from The gentlemens or builders companion : containing variety of usefull designs for doors, gateways, peers, pavilions, temples, chimney-pieces, slab tables, pier glasses, or tabernacle frames, ceiling peices [sic] &c. (1739)](https://img.insideoutlibrary.com/img/200/ia-gentlemensorbuil00jone-26-11.webp)
