Read it through once

In a chapel of the cathedral is an altar with facings of solid silver--at least they call it so, and I think myself it would go a couple of hundred to the ton (to speak after the fashion of the silver miners)--and before it is kept forever burning a small lamp. A devout lady who died, left money and contracted for unlimited masses for the repose of her soul, and also stipulated that this lamp should be kept lighted always, day and night. She did all this before she died, you understand. It is a very small lamp and a very dim one, and it could not work her much damage, I think, if it went out altogether.