Iron and glass
A portion of a building after Paxton’s Crystal Palace (1851): a 24-foot module of cast-iron columns and girders, ridge-and-furrow glass roofs and a vaulted transept.
The rules it illustrates
The ridge-and-furrow roof. Glaze a roof in a series of small ridges and valleys, the panes set at an angle on light sash bars, so that the low sun of morning and evening strikes the glass more squarely, the roof is stiffened by its folds, and the rain runs into gutters in the furrows.
Where it appears in the book
In the styles Victorian garden, Chicago School.
In the chapters Frame and Skin, Gardens and Landscape.