Lessons 1–4. Generalities.

Notions on the mode of action of forces in carpentry. Resistance of a piece of wood to a longitudinal effort and to a transversal effort. Distinction between resistance to flexure and resistance to rupture. Beams.

Advantages of the triangular system, St. Andrew’s cross.

Lessons 5–8. Roofs.

Ordinary composition of roofs.

Distribution of pressures in the different parts of a girded roof.

Design of the different parts of roofs, &c., &c.

Lessons 9–10. Staircases.

MASONRY.

Lessons 11–12. Generalities.