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Describes the character and distribution of the Raritan, Matawan, 
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79 Clarke (Frank W.). The constitution of the silicates. 
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Discusses the constitution of silicate minerals, with special regard to 
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80 Clarke (John M.). "Cephalopod beginnings." 
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Discusses the recent reviews of the author's papers on the structure 
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81 Claypole (E. W.) On anew specimen of Cladodus clarki. 
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Describes and figures a specimen of Cladodus clarki from the Cleve- 
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82 Kecent contributions to our knowledge of the cladodont sharks. 
Am. Geol., vol. xv, pp. 363-368. 
Reviews the descriptions of the cladodont sharks from material found 
in Carboniferous rocks, and describes some of their characteristics from 
more perfect material from the Cleveland shale of Ohio. 
83 Actinopliorus clarki Newberry. 
Am. Geol., vol. xvi, pp. 20-25, pi. ii. 
Describes additional features of this species from material found in 
the Cleveland shale of Ohio. 
84 The cladodonts of the Upper Devonian of Ohio. 
Brit. Assoc. Adv. Sci., Rept. for 1895, p. 694 (A p.). 
Gives a brief discussion of the characters of cladodonts. 
85 The great Devonian placodernis of Ohio, with specimens. 
Brit. Assoc. Adv. Sci., Rept. for 1895, p. 695 (.V p.). 
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87 Clerc (F. L.). [The lead and zinc deposits of Missouri.] 
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Makes a correction of certain statements made by A. Winslow, in a 
paper on the same subject. 
