The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 320
Fig. 4. Fig. 3. Fig. 1. SO on with the remainder of the blocks, all of which are firmly cemented to-gether; upon the ends of each of the blocks e and d, there is a tennon whichfit into grooves formed in the adjoining block, so that the whole forms onesolid and compact mass. Fig. 2 shows a sectional…
Architecture · Civil engineering · Science
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