Notes and queries as to: (a) the cerebral commissures of the elephant shrew Macroscelides; (b) brain and heart of a manatee, and what is believed to be the smallest known sirenian fetus; (c) the brains of various fishes, including the rare Japanese shark, Mitsukurina; (d) the swallowing of a young alligator by a frog.

Science (n.s.) 21: 268-269.