7.2              14, 20

7.3              4, 13

7.4              19

7.5              7

7.6              17

7.7              3

10.2          9, 19

10.3          16, 21, 22

10.4          4, 14

10.6     9, 10, 15

10.7     4, 5, 21, 24

10.8     4, 8, 10

9.2       43, 46, 50, 51

9.3       12, 20, 32

9.4       just sketch 5 and 9, complete 17a and 18a

9.5       3, 12