figure 8-19

figure 8-22

figure 8-26

figure 8-06

figure 8-15a

figure 8-23a

figure 8-08

figure 8-09

figure 8-10

figure 8-17a

figure 8-17b

figure 8-03b

figure 8-04

figure 8-27

figure 8-28

figure 8-25a

figure 8-25b