But how surprised were the boy and girl, when they came nearer, to find that the house was built of gingerbread, and ornamented with sweet cake sand tarts, while the window was formed of barley-sugar.

Some engineers suggest that this period be extended to allow a sand bed to rest for a month after the sludge cake has been removed.

Nanjing silty clay with fine sand interbed is a sediment deposited alternately by silty clay and fine sand, appearing to be a "thousand layers cake";