Air seasoning? Time required? Depends upon what?
Kiln drying? Why? Temperature of kiln?
How do soft and hard woods differ as to methods of seasoning? Time required for each?
Checks in hard wood? Why? How prevented?
Case hardening? Why? How prevented?
Clear lumber? Dressed lumber? Abbreviation for dressed lumber?
How is lumber computed and sold? Shingles, lath, and moldings?
How would you specify lumber in an order?
Assignment for Lesson 29—
Essentials, Review Appendix III, Sections 2, 3, 4, 5, 6, and Sections 26, 27, 28, 29, 30, 31, 32, 34.