Educational Collection of Wisconsin Rocks (Classic Reprint) - Tapa blanda

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Excerpt from Educational Collection of Wisconsin Rocks

Purpose of the collection. The Educational Collection of Wisconsin Rocks and Ores is designed for use in high schools and other institutions in which general science, elementary geology, physical geography, or geography of Wisconsin is taught. The collection was made by a cooperative agreement between the Wisconsin Geological and Natural History Survey and the Department of Geology of the University of Wisconsin. Although it alone will not give students a complete knowledge of rocks, it is hoped that it will stimulate interest in the study of rocks and geology. Rocks lie all about us and are the ultimate source of the soil from which we derive our living. From the ores we derive the metals without which our civilization would be impossible.

The treatment of the subject has been made so simple that students should be able to get something out of its study even if no preliminary work has been done on minerals and rocks. Teachers who wish to give such work can secure copies of the laboratory exercises used in the University elementary classes by writing to the Department of Geology. Thorough work in the laboratory cannot be undertaken without having one specimen of each rock or mineral for every three to five students. It is only by drill in the laboratory that students learn to distinguish rocks in a systematic manner. This collection cannot be used for a complete laboratory course since only one set can be furnished to each institution. Either the Geological Survey or the Department of Geology will be glad to determine any specimens of rocks or minerals provided the transportation charges are paid both ways by the sender. Small broken chips of fresh rock are best. Badly weathered specimens cannot be determined readily.

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