- Ruby-crowned Kinglet
- White-Eared Antelope (A. leucotes), Male, Central Africa
- Downy Woodpecker
- A whip-scorpion
- Early Life-History of the Salmon
- Zebra with young
- Rattlesnake
- Tortoise
- Argus persicus. Capitulum of male
- House Wren
- Preparing to lie down
- Viper
- Pleat Gecko
- Panther snake
- Head of Manilla Buffalo—female
- Hand of Gorilla, Orang, Gibbon, and Chimpanzee
- Mosquito
- Larva of Forficula
- Short-horned Bull
- Bobwhite
- Red-headed Woodpecker
- Egg-capsule of P. orientalis
- Bronzed Grackle
- Snapping turtle
- Mus rattus
- Normal position of the larvæ of Culex and Anopheles in the water
- Sleeping Bat
- Aëdes calopus; larva
- Loggerhead Shrike
- The common round-web spider, Epeira vulgaris of Hentz (Under Side)
- Teju
- Grizzly Bear
- Wood Thrush
- Yellow-breasted Chat
- Kingsnake
- Balanoglossus clavigerus . (Young specimen, greatly enlarged)
- Head of young male Bison
- A grateful return
- Waterbok (Antilope [Kobus] ellipsprymna, Ogilby)
- Crested Flycatcher
- Chipmunk
- Myrtle Warbler
- Eastern Kingbird
- Pine Siskin
- Wandering Crab Spider
- Saccopharynx ampullaceus
- Gems
- Horned Viper
- Bat
- The Musk-Ox (Ovibos moschatus)
- Mosquito
- Foot of Epeira Vulgaris
- Cockroach
- Nilewar
- Sicyonis crassa
- Head of Indian Elephant
- Black and White Warbler
- Fallow Deer
- Giraffe
- Wall gecko