It occurred to me that it might be put to other and equally practical uses.

For no one can conceal the emotions from this instrument, not even a person of cast-iron nerves." She had placed it on Drummond's arm.

He appeared fascinated.
"See how it works ?" she went on.

"You see one hundred and twenty-five millimeters is the normal pressure.

Kitty Carr is absolutely abnormal.
I do not know, but I think that she suffers from periodical attacks of vertigo.