Saint Peter's Church is a historic church in Leiden whose significance in the narrative rests on the monuments it houses: a memorial to Professor Luzac, killed in the 1807 Leiden explosion, and a monument to the physician Boerhaave. When the boys visit, the church brings the city’s public history into the present through objects they can see and examine.

Setting and Visit

During their sightseeing in Leiden, the boys visit Saint Peter's Church after learning about the explosion that struck the city in 1807. Professor Luzac had been among those killed, and the church held a tablet in his memory. The account presents the church as one stop among the city's sights, but its memorials give the visit a particular historical weight.

Memorials to Luzac and Boerhaave

The memorial to Professor Luzac bears a carved image of the professor. The boys hear that it represents him as he appeared when he was found after the explosion, making the monument a specific reminder of the disaster rather than an abstract tribute. They also ask whether Boerhaave's monument is in the same church; the captain confirms that it is.

The boys see Boerhaave's monument, made of white and black marble. It includes an urn, carved symbols representing the four ages of life, and a medallion of Boerhaave bearing his favorite motto, Simplex sigillum veri. The contrasting memorials place a local catastrophe and a celebrated physician's legacy within the same civic and religious space.

Historical Memory

The church’s monuments turn Leiden's past into something encountered during an ordinary sightseeing visit. The account gives the boys a tangible link to the 1807 explosion through Luzac's memorial, while Boerhaave's monument preserves a different kind of remembrance, centered on learning and the course of human life. Saint Peter's Church thus serves not merely as a landmark but as a setting where the city's losses and achievements are made visible to visitors.