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Expanded edition of definitive guide for professionals and amateurs presents valuable information about finding, preserving, and studying fossils. Over 1,500 drawings and photographs. "Readable . . . and remarkably comprehensive." — Chicago Sunday Tribune.

An introduction to the study of trees, how they grow their fruit, and their propagation.

A look at the different types of weather around us from wind and clouds to rain and heat.

An introduction to space-traveling asteroids, satellites, comets, meteor swarms, stars, and planets.

Illustrates and describes prehistoric creatures and their modern relatives--elephant, buffalo, camel, horse, bear, pig and many others.

Describes the formation, location, and differences in rocks, stones, and minerals and how to collect specimens.