[In Place of Lungs, Insects Have Breathing Holes]

[The Minute Animal Which Causes the “Sleeping Sickness”]

[The Caterpillar Changes into a Moth]

[Accidents to Growing Fish Eggs]

[A Two-headed Turtle, a Crab with an Eye on One Side and a Feeler on the Other, and a Child With Two Great Toes on Each Foot]

[The Fangs of a Rattlesnake]

[Early Man Scratched Pictures of the Mammoth on Pieces of Its Own Bones]

[The Elephant Has Lost the Front of His Face]

[Our Single-toed Horse Has Been Made Over from a Four-toed One]