I N DEX 



The superior figures tell the exact place ou the page in ninths; e. g. 648^ means 

 page 648, beginning in the third ninth of the page, i. e. about one third of th€ 

 way down. 



Adirondack mountains, drift from, 



627^ 

 Aetites, 626-. 



Barker point, till bed, 638^ 



Barnum's Island, well section on, 651^ 



Beaches, 6621 



Bibliography, 664'. 



Block island, gravels and sands, 624^ 



633^; erosion of valleys, 636''. 

 Boulder clay, 623^ 627^. 

 Boulders, 624^ 627^ 652^ 

 Brick clay at East Williston, 645^. 

 Brooklyn quadrangle, 648^-50-. 



Center island clays, 630^. 

 Chamberlin, T. C, cited, 641^ 664^. 

 Clays of Long Island, 62^-228. 

 College Point delta, 657-^-599. 

 Columbia formation, 624i-33«. 

 Crosby, W. O., cited, 64o», 651« 

 Curtis, G. C, cited, 6.33^. 



6645. 



Discoloration of the gravels,- 625\ 634^. 

 Dislocated deposits, 624^, 630^, 632^ 



Eaglestone, 626"^ 



East Williston, sections of clays, 645'. 

 Erosion interval, 634*-37'. 



Far Rockaway ridge, 651'. 

 FossiUferous boulders, 624^ 627^ 

 Fossiliferous pebbles, 624\ 



Geikie, A., cited, 626^ 



Geology, 621^ 



Glacial formations, 6232-48^ 



Glacial history, summary of, 660'-63^ 



Glacial lakes, 658«. 



Glacial streams, 6433-44^ 



Glaciated ledges, 6523-53^ 



Glen Cove, Pleistocene section, 628«. 



Glen Cove valley, 635^, 



Glossary, 664«-68-. 



Gravels of plains on Oyster Bay quad- 

 rangle, 624'--33^; discoloration, 625', 

 6342; in moraines, 6389. 



Great Neck section, 631®. 



Harbor hill, 639°-41*. 

 Harbors, excavation, 636^. 

 Harlem quadrangle, 648^-50^. 

 Hempstead quadrangle, 618"^. 

 Highlands, trap boulders from, 627^ 



652^ 

 Hollick, Arthur, cited, 664-*. 



Jamaica bay depression, 650^-52^. 



Lake Surprise, 66P. 

 Lewis, Elias jr, cited, 664-. 

 Lyell, Sir Charles, cited, 652^ 



McGee, W. J., cited, 6242. 



Manhasset sands, 682'. 



Marshes, 662«. 



Marthas Vineyard, gravels and sands, 

 624^ 633^; stone concretions, 625'*; 

 erosion of valleys, 636''. 



Mather, ^Y. W., cited, 624^ 627^ 664'. 



Merrill, F. J. H., cited, 624\ 651^ 664^ 



Mill Neck creek depression, 635^. 



Mill Neck sands, 6309. 



Moraines. 6185-19^ 625^ 637'-46"; dis- 

 tinction between outer and inner, 

 64P-43'^. 



Outwash plains, 644''-469. 

 Oyster Bay, springs at, 637'. 

 Oyster Bay quadrangle, 618-, 624'. 



Palisades, trap boulders from, 627^, 



652\ 

 Peat, submerged, 663^. 



