Necessary conditions for good varnishing? Why these conditions?
Shellac? Where found? What is it? How prepared?
Two kinds of shellac?
White shellac, how made and where used especially?
Orange shellac, advantages and disadvantages?
Caution about applying shellac?
Why is shellac sometimes used before varnish and wax?
Describe method of producing egg-shell gloss shellac finish.
Assignment for Lesson 21—
Essentials, Section 113. Instructor explain the mounted specimens of wood illustrating tree structure.