London : Longman, Rees, Orme, Brown, Green, and Longman · leaf 344
There are two forms of the horseshoe arch {Jigs. 152. and 153.),in which the centres are above tl>e line of the springing. Thisarch is not common ; but is sometimes introduced along withsemicircular arches, apparently for the sake of variety. Fig. 154. is the segmental arch, in which the centre…
Architecture
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