INDEX TO SIXTH REPORT OF THE DIRECTOR I909 



227 



Mohawkian limestone, 112, 113, 



129. 

 Mollusca, monograph of, 56. 

 Moose, 46. 



Morgan, Lewis H., cited, 214. 

 Mt Mclntyre, 12. 

 Mt Marcy, 12, 13. 

 Mt Marcy quadrangle, 12. 



New Scotland beds, 158, 159. 

 New York, southeastern, geology 



of, 14-20. 

 Newark sandstones, 151. 

 Newland, D. H., Mining and 



Quarry Industry of New York, 



Newport section of Little Falls 

 dolomite, 116, 126-27, I2 9- 



Niagara formation, 150. 



Northville, 21. 



Nun-da-wa-o, the oldest Seneca 

 village, by D. D. Luther, 213-21. 



Obolella, 18. 

 Olean conglomerate, 27. 

 Olean Rock City, 27. 

 Olenellus sp., 18. 

 Oneota dolomite, 132. 

 Ophileta, 101. 



disjuncta, 117. 



levata, 121. 

 Ordovicic, contact with Canadian 



and Ozarkic, 132. 

 Oriskany beds, 158, 159. 

 .Orthoclase, 16. 

 Oscillations of level, 137-40. 

 Ozarkic and Cambric, boundary 



between, 132. 



Paleontology, 40-45; bulletin, 72; 

 accessions to collections, 77 _ 78. 



Paleozoic platform of North 

 America, symmetric arrange- 

 ment in the elements of, by 

 Rudolf Ruedemann, 141-49. 



Pamelia formation, 102. 



Parrish, quoted, 216. 



Pearls, investigation of occur- 

 rences, 56-58. 



Phelps quadrangle, 9. 



Phytopsis, 124, 127. 



Pinnacle, 21. 



Pinnacle mountain, 20. 



Pitchoff mountain, 14. 



Plagioclase, 16. 



Plant lice, 48. 



Plectambonites sericeus, 19. 



Pleistocene deposits, 12. 



Pleurotomaria hunterensis, 121, 



128. 

 Port Ewen, 158, 159. 

 Port Henry quardrangle, 12. 

 Portage shales, 23. 

 Postglacial mammalian remains, 



45-47- . 

 Potsdam sandstone, 11, 12, 18, 98, 



99, 103, 107, 112, 114, 116, 118, 



120, 129, 130, 138, 139; fossils, 



101; stratigraphic position, 130- 



36. 

 Pottle, E. B., cited, 217. 

 Poughkeepsie quadrangle, 16. 

 Prasopora simulatrix, 114, 121, 124. 

 Prosser, C. S., cited, 102, 116, 119, 



120. 

 Protean group, 22. 

 Publications, 69-74. 

 Pyrites, 35. 

 Pyroxene, 14, 17. 



Quartz, 16. 



Quartzite, 17. 



Remsen quadrangle, geology of, 

 by W. J. Miller, 70. 



Ribeiria, 119, 136. 



Rochester shale, 22. 



Rock cities of Cattaraugus county, 

 25-29. 



Rock City Falls, 113, 114. 



Rock hollow, 17. 



Rondout, 159, 160. 



Root, Elihu, The Iroquois and the 

 Struggle for America, 204-12. 



Ruedemann, Rudolf, survey of 

 Saratoga quadrangle, 11; Sym- 

 metric Arrangement in the Ele- 

 ments of the Paleozoic Platform 



