Describes the physical characteristics, movements, satellites, and other features of Uranus, with an emphasis on recent discoveries from Project Voyager.
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A guide for the amateur, presenting the simplest and most practical techniques consistent with high professional standards. Detailed drawings and photographs. Includes instructions for building a small observatory.
An English school teacher's description of her trip by motorcycle across the United States, and to Mexico City.
An English school teacher's description of her trip by motorcycle across the United States, and to Mexico City.
Discusses the importance of forests, the parts and cycles of trees, the functions of flowers and fruits, the distinctive features of conifers, and the forest regions in the United States
Discusses the importance of forests, the parts and cycles of trees, the functions of flowers and fruits, the distinctive features of conifers, and the forest regions in the United States.
Discusses the importance of forests, the parts and cycles of trees, the functions of flowers and fruits, the distinctive features of conifers, and the forest regions in the United States.
Text and drawings explain how flowers mature into seed-bearing fruit.