- Cow Drinking
- Bird on a flower
- Thelemark cows of Norway
- Black Mallards
- Ducks Swimming (2)
- Bird
- Black Mallard Ducks
- Owl 2
- Woodpecker
- Bird 2
- The Swarm spirit
- Bird 3
- Pear
- Bird 4
- Two toads
- Mouth-parts of Honey Bee
- Rose Hip cut lengthwise to show the seeds
- Owl
- berries of the bittersweet
- Bees on apple blossoms
- Apple Flower
- Pear cut lengthwise
- Frogs
- A frog eyeing his lunch
- A Rose hip
- Apples
- A Toad
- Apple cut crosswise
- A frog
- Wild Beach plums
- Jack-in-the-pulpit
- Apple cut lengthwise
- Fresh-Water Hydra
- Grass border
- cherry blossom cut open
- dandelion seedbox
- Burdock
- Cherry Flower 2
- Colymbetes rufimanus - Larva
- Indian cucumber root
- Chætosoma scaritides
- Cherry flower
- Staphylinus oculatus
- Pterostichus opulentus
- Chokeberries
- Star-fish Opening an Oyster
- Oral and digestive system of Deinacrida megacephala
- white baneberry
- Apple
- Low at our feet are the red ones of the wintergreen
- Dryocora howittii - Larva
- Colymbetes rufimanus
- Pterostichus opulentus - Larva
- Milkweed plant
- Dorcus punctulatus
- barberries
- Body of an insect
- shot out into the world
- barberries
- Stethaspis suturalis - Larva