Both Malleable And Cast, In The Construction Of Roofs For Warehouses, Factories, Railway Stations, And Other Buildings, From 20 To 150 Feet In Span. Comprising Details Of The Roofs At The New Palace At Westminster, And At The Pentonville Model Prison, Of The Compounded Rafters Of The Great Roof At Liverpool, Etc. With Enlarged Sections Of The Parts Of Several Roofs, Admitting Of Ready Adaptation To All Intermediate Spans And To All Descriptions Of Buildings.