Juvenile literature Farm life -- Handicraft -- Nature study -- Animals -- Apples -- Asteroid belt -- Asteroids -- Chickens -- Dairy cattle -- Dairy processing -- Ecology -- Egg gathering -- Eggs -- Experiments -- Farm produce -- Galaxies -- Giraffe -- Grizzly bear -- Insects -- Leaves -- Lion -- Meteorology -- Milk -- Nature craft -- Polar bear -- Quasars -- Rhinoceroses -- Sheep -- Sheep ranches --