He refused to allow her to do this, saying that he could quite easily be his own doctor in such a trifling matter as a cold.

Some hot lemonade was made at his request, with a view to producing perspiration.

Lady Montbarry's maid having left her at that time, the courier Ferrari (then the only servant in the house) went out to buy the lemons.

Her ladyship made the drink with her own hands.

It was successful in producing perspiration--and Lord Montbarry had some hours of sleep afterwards.