Black and white diagram engraving of species and parts of whales. Depicted are: (1) part of the head and tusks of a microcephalic Narwhal; (2) upper jaw and other portions of the head of a sperm whale; (3) sperm whale. Lettered with captions and "1. Partie de la t̻te et d̩fenses d'un Narwal Microc̬phale. 2. Machoire sup̩rieure et autres portions de la t̻te d'un Cachalot soinewal. 3. Physale cylindrique. Pl. 9. Page 159."
