I can see _at once,_ that you are not a day older than poor, darling papa.
In fact you may be younger.

I am perfectly certain you are not more than fifty." The professor says nothing.

He is staring at her.

He is beginning to feel a little forlorn.

He has forgotten youth for many days, has youth in revenge forgotten him?
"That is taking off a clear hundred at once," says she lightly.