Read it through once

Then we went down into a cavern which cavilers say was once a cistern. It is a chapel, now, however--the Chapel of St. Helena. It is fifty-one feet long by forty-three wide. In it is a marble chair which Helena used to sit in while she superintended her workmen when they were digging and delving for the True Cross. In this place is an altar dedicated to St. Dimas, the penitent thief. A new bronze statue is here--a statue of St. Helena. It reminded us of poor Maximilian, so lately shot. He presented it to this chapel when he was about to leave for his throne in Mexico.