10 Ech. 
XI V. ECHINODERMA. 
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63. Horst, R. Liste des Echinodermes, Io Guide Zoologique. Com- 
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64. Jackson, R. T. The development of Oligoporus. Science (n.s.) ii, 
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« [This is the abstract of a paper published under the title, “ Studies 
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65. & Jaggar, T. A. Arrangement and development of plates in 
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66. Jaekel, O. Ueber die alteste Echiniden-Gattung Bothriocidaris. 
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67. . Beitrage zur Kenntniss der palaozoischen Crinoiden Deutsch- 
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Critical abstract by H. Ludwig, Zool. Centralbl. ii, pp. 639-642 
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68. — — . Ueber die Organisation der Cystoideen. Verb. Deutsch. Zool. 
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1896). 
Jaggar, T. A. See Jackson, R. T., & Jaggar, T. A. (65). 
69. Jahn, J. J. Einige Beitrage zur Kenntniss der bohmischen Kreide- 
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[Ill, B. iii, 
70. Keyes, C. R. Palaeontology of Missouri. Part i. Chap. vi. Echi- 
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graphic Catalogue,” pp. 241-264 (1894). [Ill, B, iv, a. IV, C ; 
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71. . A bibliography of North American Palaeontology, 1888-1892. 
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72. * — — . Synopsis of American Paleozoic Echinoids. Iowa Ac. ii, 
pp- [ ? ] 
