From the moment he saw her he was conscious that she was different; insensibly the exquisitely volatile charm of her enveloped him, and he betrayed it, awaking her, first, to uneasy self-consciousness; then uneasy consciousness of him; then, imperceptibly, through distrust, alarm, and a thousand inexplicable psychological emotions, to a wistful interest that faintly responded to his.

The oil was specially volatile, and in the warmth of the sun (for the tins were regularly set in an accessible place on the top of the cairns) tended to become vapour and escape through the stoppers even without damage to the tins.