Physiology and histology of the Cubomedusæ including Dr. F.S. Conant's notes on the physiology

This scholarly memoir brings listeners into the early days of marine biology, following a team of Johns Hopkins researchers as they examine the remarkable box‑jellyfish. Beginning with a tribute to the late Dr. F. S. Conant, the work weaves his meticulous physiological experiments—probing reactions to light, darkness, temperature and food—together with fresh observations by his colleague, who expands the study to include detailed histology of the creature’s eyes, sensory clubs, and tentacle structures.

The narrative stays grounded in the first act of discovery, describing how specimens were gathered in Jamaican waters and carefully preserved for microscopic analysis. Listeners will hear clear explanations of the jellyfish’s complex anatomy, from the layered retinal cells of its distinctive eyes to the delicate nerve networks that coordinate its movements. Throughout, the tone remains that of a thoughtful scientific diary, offering a vivid snapshot of turn‑of‑the‑century research and the collaborative spirit that drove it forward.