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Theory of Collineation (with Plate)
Vol 6, Iss 1
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The Pennsylvanio Amphibia of the Mazon creek, Illinois, shales
Vol 6, Iss 2, Page 321
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Krameria canescens Gray
Vol 6, Iss 3, Page 361
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Evidences of Pleistocene Crustal Movements in the Mississippi Valley
Vol 6, Iss 4, Page 373
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The Influence of Salt Solution Upon the Intestine of the Frog
Vol 6, Iss 5, Page 381
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On a comparison of three skulls: Castoroides ohioensis, Castoroides kansensis, and Castor fiber
Vol 6, Iss 6, Page 387
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Cytological Studies of Femur-rubrum and Other Melanophil
Vol 6, Iss 7, Page 397