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Discusses the behavior of bees, ants, and other insects that live in colonies.

Provides information on the points and markings of the horse, different colors and breeds, how to care for a pony, riding lessons, proper clothing, and how to draw horses.

Discusses various kinds of pollution, their causes, and different ways to improve the environment.

An introduction to the history of airplanes and balloons with a description of different types and how they work.

An introduction to the physical characteristics and behavior patterns of various species of mollusks and crustaceans.

An introduction to wild and domestic cats, their common behavior patterns, and their individual traits.

Discusses various kinds of pollution, their causes, and different ways to improve the environment.

An introduction to snakes, lizards, turtles, and other reptiles and their behavior in the wild.

An introduction to the history of trains with a discussion of different kinds of trains and railroads and how they work.