Chapter 4
Figure 4-1
Figure 4-2
Figure 4-3
Figure 4-4
Figure 4-5
Figure 4-6
Movie 4-1
Movie 4-2a
Movie 4-2b
Movie 4-3a
Movie 4-3b
Movie 4-3c
Movie 4-3d
Movie 4-3e
Movie 4-4