Science

A Watershed Year Cornelia Mutel	Genes and Human Self-Knowledge Robert F. Weir Susan C. Lawrence Evan Fales	Stored Tissue Samples Robert F. Weir	924 Elementary Problems and Answers in Solar System Astronomy James Van Allen	Origins of Magnetospheric Physics James Van Allen	James Van Allen Abigail Foerstner
Iowa's Minerals Paul Garvin	Grove Karl Gilbert Stephen Pyne	The Butterflies of Iowa Dennis Schlicht John Downey Jeff Nekola

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