He gazed at her fixedly.

Her eye was so animated, her countenance so beaming, so luminous, that involuntarily he dropped his arms and let fall, as he did so, a little vial he held in his hands.
"Naughty girl, to cause such havoc in her father's laboratory!" she cried, gaily.
"The harm done is not very great," he replied; and he began diligently brushing up the fragments of the vial.

It was his way of gaining time, but he did it so awkwardly that she snatched the brush from his hands: "This is the way to sweep," said she.
He watched her, saying to himself: "This is the reverse of the scene at Churwalden.

It is now I who wear a long face, and she cannot dissemble her joy.

Just requital of things here below." So soon as she had finished her brushing she looked around and remarked: "Well, here you are once more in your paradise--this enchanted spot, where you taste such ineffable delights." "Oh, yes, I am happy here--happy enough that is," he replied, with modesty.
"Fastidious creature! It is altogether charming in your laboratory." "Yes, it is suitable.