London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 134
es of Construction inArches, Piers, Buttresses, Sfc, By William Bland, Esq., Jun.Essay II. Experiments, ivith Weights and Structures, on Arches ofvarious Dimensions, composed of Wooden Voussoirs, and of Bricks,•eoithout Cement, but having the Aid of Friction, and immovableButtresses at the Base, or… … wooden voussoirs ; the dimensions of each of which are 4 in.long, 2i in. wide, and 2 in. in average thickness ; the weight ofeach is half a pound, so that the whole arch weighs ten pounds.Having placed this arch on a table, and secured the voussoirs aand b from being pressed out, a pound weight was…
Architecture
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