Cosmos, Revue Encycl. Hebd. Prog. Sci., etc. (Paris) 19: 513-514. Nov. 8, 1861.

–Comments on a report (in the Oct. 18 issue of Cosmos) of an animal captured in Hudson's Bay, supposedly having "eight feet" but allied to the manatee; suggests that it was instead eight feet in length, and possibly Rytina (of which he thought only one individual had ever been found, and that in the area of Bering Strait) or a near relative. He was taken to task for these remarks by J. F. Brandt (1863c: 563).