Through The Looking Glass by Lewis Carroll Chapter 8 Page 9

‘But what are they for?’ Alice asked in a tone of great curiosity.

‘To guard against the bites of sharks,’ the Knight replied. ‘It’s an invention of my own. And now help me on. I’ll go with you to the end of the wood — What’s the dish for?’

‘It’s meant for plum-cake,’ said Alice.

‘We’d better take it with us,’ the Knight said. ‘It’ll come in handy if we find any plum-cake. Help me to get it into this bag.’

This took a very long time to manage, though Alice held the bag open very carefully, because the Knight was so very awkward in putting in the dish: the first two or three times that he tried he fell in himself instead.