Fig. 2. … 1 0 Scale of Feet. Fig. 1 is a longitudinal, and fig. 2 a transverse section, showing this mode-of forming a railway over a moss ; a a are the hurdles, or wickered foundatn in,which may either be single, or two or three layers, according to the tenacity ofthe moss; b b is the coating of sand or…
Civil engineering · Architecture
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.