BIBLIOGRAPHY 59 
Hutchinson. Creatures of Other Days. D. Appleton & Co. 
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4. Paleontology and geographical distribution. 
Smith-Woodward. Vertebrate Paleontology. Cambridge Nat- 
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Zittel. Handbuch der Palzontologie. Vol. I., Pt. IV. Mam- 
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Lydekker. Geographical History of Mammals. Cambridge Uni- 
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5. Geology. 
Scott. Introduction to Geology. The Macmillan Co. New 
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Leconte. Elements of Geology. D. Appleton & Co. New York, 
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Dana. Manual of Geology. Fourth Edition. American Book 
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