'And now, Mr.
Tudor, what do you know of arithmetic ?' Charley said that he thought he knew arithmetic pretty well;--'at least some of it,' he modestly added.
'Some of it!' said the Secretary, slightly laughing.

'Well, I'll tell you what--this won't do at all;' and he took the unfortunate manuscript between his thumb and forefinger.

'You had better go home and endeavour to write something a little better than this.
Mind, if it is not very much better it won't do.

And look here; take care that you do it yourself.

If you bring me the writing of any one else, I shall be sure to detect you.