immediately raised in me a suspicion of its having the properties of the Peruvian bark" (1).

They certainly ruled with firm hands, backed up by heavy rulers - made of Peruvian bark according to rumors.

The nuns were known to come charging into the boys' room, with Peruvian bark raised, at the sign of any disturbance.

The disease was effectively treated with "Peruvian bark" which contained quinine.

Then one of the braver (and one with no imagination, but very athletic) grabbed her "Peruvian Bark" ruler, a very dangerous weapon when she was hanging out punishment - and climbed on the discarded desks and furniture in the basement.