- Proterospongia
- Volvox
- Diagram of amœba
- Early Life-History of the Salmon
- Nautilus
- The Skull and Brain-Case of Pithecanthropus
- Skeletons of the Gibbon, Orang, Chimpanzee, Gorilla, Man
- Surinam Toad (Pipa Americana) with Young Ones Hatching out of Little Pockets on her Back
- An Eight-Armed Cuttlefish or Octopus Attacking a Small Crab
- Wing of a Bird, Showing the Arrangement of the Feathers
- Deerhound
- The Albatross swooping over the ocean waves
- The Cormorant, the Fishing Bird of China
- The Savage Florida Alligator
- A Hooded Peregrine Falcon. Its eyes are covered by the hood until the game is in sight
- The Three-banded Armadillo. An Animal in a Coat of Mail
- The Common Hedgehog with his Battery of Spines
- The Starling. One of the Talking Birds
- A Gray Parrot on His Perch. Waiting to Speak His Piece
- The Mocking Bird. No other Bird has such Versatile Vocal Powers
- The Black Swan of Australia
- A Pair of Angora Goats
- The Alpine Ibex. Note the Curiously Knobbed Horns
- The White Yak of the Asiatic Mountains
- The Striped Zebra of Africa
- The Otter, One of Nature's Fishers