4 Ccel, 
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24. Calvin, S. Geology of Page County. Ann. Rep. Iowa geol. Surv. xi, 
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29. . Further notes on the Calciferous (Beckmantown) Formation 
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30. Colton, B. P. Zoology: descriptive and practical. [Text-book.] 
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xvii + 204 pp. 
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32. Crossland, C. Structure of Pemba and Zanzibar. Nature lxvii, 1, 
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33. . Report of the Southport meeting of the British Association. 
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34. Cumings, E. R. Lower Silurian System of Eastern Montgomery 
County, New York, 1900. Bull. N. York Mus. vii, pp. 419-468, 
4 pis., 3 maps. 
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36. Daday, E. v. Mikroskopische Sfisswasserthiere der Umgebung des 
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37. Davenport, C. B. The animal ecology of the Cold Spring Sand Spit, 
with remarks on the theory of adaptation. Decennial Publ. Chicago 
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38. Del^pine, G. Contribution k l’4tude du calcaire carbonif&re dans le 
Tournaisis. Bull. Soc. geol. France (4) ii, 4, pp. 434-438, 2 figg. 
[Unimportant.] 
39. Dennant, J. Descriptions of new species of Corals from the Australian 
Tertiaries. Tr. R. Soc. S. Austral., pt. iii, xxv, pp. 48-53, 1 pi., pt. iv, 
xxvi, pp. 1-6, 1 pi., pt. v, xxvi, pp. 255-264, 2 pis., pt. vi, xxvii,. 
pp. 208-215, 2 pis. 
