William Ruschenberger

The Elements of Botany


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The Elements of Botany is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. It is a s…

The Elements of Entomology


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The Elements of Entomology is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. It is…

The Elements of Anatomy and Physiology


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The Elements of Anatomy and Physiology is one in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. Th…

The Elements of Ornithology


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The Elements of Ornithology is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. This…

The Elements of Geology


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Elements of Geology is one in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. This succinct little …

The Elements of Mammalogy


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The Elements of Mammalogy is one of seven in a Series of First Books of Natural History Prepared for the Use of Schools and Colleges. This s…

The Elements of Conchology


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The fifth of the Series of First Books of Natural History, embraces that branch of our subject which treats of the Mollusca, or soft animals…