Ah yes, I remember! It's a process for making nitric acid out of air.' Lady Maud nodded and smiled, as if she knew all about it, but her eyes were again scrutinising Mr.Feist's face.

Her neighbour, whose hobby was applied science, at once launched upon a long account of the invention.

From time to time the beauty nodded and said that she quite understood, which was totally untrue, but well meant.
'That young man has the head of a criminal,' said the barrister on her other side, speaking very low.
She bent her head very slightly, to show that she had heard, and she continued to listen to the description of the new process.

By this time every one was talking again.

Mr.Feist was in conversation with Griggs, and showed his profile to the barrister, who quietly studied the retreating forehead and the ill-formed jaw, the latter plainly discernible to a practised eye, in spite of the round cheeks.