More cards in this set

Card 16

Front

Which is ...

Back

Preview of the front of card 16

Card 17

Front

As depression moves eastwards ...

Back

Preview of the front of card 17

Card 18

Front

This forms a ...

Back

Preview of the front of card 18

Card 19

Front

Completely undercuts ...

Back

Preview of the front of card 19

Card 20

Front

So it no longer touches ...

Back

Preview of the front of card 20

Card 21

Front

*NOTE TO SELF* Also remember to mention ...

Back

Preview of the front of card 21