INDEX TO VOLUME 17 



761 



Page 

 Chasms at Yakutat bay, Formation of 



elevated 36-37 



Chattanooga Black shale, Character, 



thickness, and age of 599-600, 



603-604, 606-610 

 Chatter marks, Character and expla- 

 nation of 303-304 



Chazy formation, Occurrence of 234 



— limestone, Thickness of 618 



Chemical analysis. See Analyses. 



■ — evolution of the ocean, by A. C. 



Lane 691 



Chemuxg-Catskill formations, Marine 

 and non-marine progressive overlap 

 in the 629 



Cheyenne sandstone,. Character and 



thickness of 623 



Chilhowee Mountain area, Tennessee, 

 Character, age, and thickness of 

 shale in 606-607 



— series, Harpers Ferry, Virginia, Sub- 



divisions of 576 



, Knoxville, Tennessee, Subdivis- 

 ions of 577 



Chonetes millepunctata, Occurrence of. . 228 

 Chopaka basic intrusives, Age and cor- 

 relation of 357 



, Analysis of 341 



— , Composition of 341 



— • , Specific gravity of 341 



Cimarron ridge, Colorado, Character of 



slopes near 262-263 



— ■■ — ■ — , Origin and character of de- 

 tritus deposits near 265-266 



Claggett formation, Character and 



thickness of 301 



Clallam formation, Conglomerates of. . 462 



, List and correlation of fossils 



from the 463-464 



— ■ — , Occurrence of coal in 464-465 



, thickness, and character of. 461-463 



•, Sandstones of ' 462 



, Shale of 462-463 



Clapp, F. G., elected Fellow 680 



Clarion coal bed, Equivalents of 74 



■ — . Occurrence and character of. 73, 74 



— county, Pennsylvania, Section in . . 98-99 



— sandstone, Equivalents of 74 



— ■ — , Occurrence, character, and thick- 

 ness of 74, 91 



Clark coal bed. See Shaft coal bed. 

 Clark, W. B., cited on Conemaugh for- 

 mation 165 



correlation of the Brookville 



coal bed 80 



Clark, W. O., Title of paper by 731 



Clarke, J. M., cited on fauna of Por- 

 tage formation, New York 594 



— , Public lecture delivered at Ottawa 



by 709 



— , Record of remarks by 694 



Clarksburg, West Virginia, Section 



at 144-145 



Clay Courthouse, West Virginia, Sec- 

 tion at 138, 213 



Clearfield county, Pennsylvania, Sec- 

 tion near 90-91 



Cleland, H. F., elected Fellow 680 



Clermont coals, Occurrence of 94 



Climate, Effect of changes of land area 



and form on 416-417 



ocean currents on 417-418 



Clinton county, Coal areas in 81 



Coal measures, Methods of grouping 



the Appalachian 65-69 



Coast Range batholith, Location and 



composition of 330 



Ccedr d'Alene district, Idaho, Alon- 



kian of 14 



— series, Location of 20 



Page 

 Coleman, A. P., member of geological 



excursion to Ngotshe and Vryheit, 



South Africa 406-407, 421 



— , Record of remarks by 091, 694, 



695, 701, 706, 710 



— , Title of paper by 718 



Collen, M., cited on Grey son shales 



and Newland limestone 20 



Collie, G. L., Title of paper by 619 



Collins hill, New Milford, Character of 



deposits at 294 



Collins, W. H., Title of paper by 692 



Colorado, eastern, Ordovician in. . . 556-563 



— formation, Occurrence of 301 



■ — , Glacial phenomena of the San Juan 



mountains 251-274 



— plateau, Discussion of canvon cut- 



tings in 280-283 



, Course of Colorado river affected 



by uplift of 279 



, Faulting of 279 



, Geologic formation of 278 



— ■ — , Occurrence of lava flows on 281 



, Volcanic eruptions on 281 



— ■ river, Deposition of sand and gravel 



bv 280, 281 



■ , Erosion by 280-283 



, Gravel deposits along 282 



, Volcanic dam across 281-282 



(Lower), Correlation of geologic 



epochs of the 283-284 



■ -, Description of 277 



, Geology of 275-284 



, Tabular resume of geology of. 284 



— Springs, Colorado, Map of Manitou 



embayment near 562 



Columbiana county, O., Section in. 184-185 

 Comanche formation, Character and 



thickness of 621 



— ■ Peak and Edwards formations, 



Thickness of 623 



— series, Texas, Divisions of 589 



Comstock, T. B., cited on age of Big- 

 horn limestone 555 



Conard, H. S., cited on geology of 



Olympic mountains 457 



— ■ — ■ — peninsula, Washing- 

 ton 452 



— , Title of paper by 452 



Conasauga shale series, Occurrence, 



character, and thickness of 577 



Conemaugh coal measures, Svnonvmy 



of 68 



— -formation. Correlation of 154-163 



— - — -east from the Alleghenies. ... 163-165 



, Effect of erosion on 177 



, Horizons in, Discussion of . . . 154-163 



in anthracite fields 216-228 



Kentucky 200-202 



Ohio 184-200 



— — — West Virginia 160-161, 



182-183, 202-216 



, Occurrence of 90 



— red and green shale in.... 161 



of Appalachian basin 154-216 



-first bituminous coal basin of 



Pennsylvania 165-168 



■ — second Pennsylvania basin. 168-172 



western Pennsylvania ba- 

 sins 172-182 



, Thickness of 87, 123, 163, 178, 



182, 192, 193, 197, 198, 199, 203, 210 



Conglomerate. Use of term 409 



— . Possible torrential origin of . . . . 292-294 

 Connecticut, Paper on geological map 



of, by H. E. Gregory 727 



Connellsville sandstone, Occurrence 



of 159 



Connor, M. F., Rock analysis by. . . 503-504 

 Conoid fractures, Character and expla- 

 nation of 305-307 



