Marsh Pond – Aquarium palustre
“The Marsh Pond is surrounded by walls or horizontally placed logs, which separate the water from solid ground; in between them is a space full of marsh mud, in which marsh plants have been planted.”
Carl Linnaeus, Hortus Upsaliensis 1745
Linnaeus’ three ponds were fed water from a spring flowing through the garden. The water was led from east to west through hollowed-out logs which had been buried in the ground. The Marsh Pond was the shallowest of the three and filled with marsh mud.