The carpenter's new guide [electronic resource] : being a complete book of lines for carpentry and joinery. Treating Fully on Practical Geometry, Soffits, Brick and Plaister Groins, Niches of every Description, Sky-Lights, Lines for Roofs and Domes, with a great Variety of Designs for Roofs, Trussed Girders, Floors, Domes, Bridges, &c.;-Stair-Cases and Hand-Rails of various Constructions; Angle Bars for Shop Fronts, &c.; and Raking Mouldings; with many other Things entirely new. The whole founded on true geometrical principles; the Theory and Practice well explained, and fully exemplified on seventy-eight copper-plates, correctly engraved by the author. Including some observations and calculations on the strength of timber. By Peter Nicholson.