[D] See page [169].

[E] See page [266].

[F] See page [140].

[G] See pages [291], [292].

[H] "Wear and Tear," p. 54.

[I] See page [145].

[J] See [Appendix II].

[K] See page [240].

[L] See page [91].

[M] See [Fig. 1], on page [36].