INDEX 



Albany, Lake, 30, 39, 40 ; subsidence 



of waters, 31, 4i 



Albany, Lake, deposits, 16-18, 19; re- 

 lation to the till, 18-19; near 

 Schenectady, composition and ar- 

 rangement, 19-21 ; economic 

 values, 24-27 



Alluvial deposits, Z7 



Alplaus, 35 



Alplaus basin, 18, 41 



Alplaus kill, 7, 8, 2>7 



Alplaus, Lake, 16, 40 



Alplaus lake deposits, 26-27 



Anthony kill, 29, 41 



Aqueduct, 11, 14, 17, 31, ZZ, 35, 4i, 

 42 



Ballston channel, 7, 12, 18, 29, 30, 

 41 ; probable agency of ice in the 

 formation of, lo-ii 



Ballston lake, 7 



Ballston lake section, no evidence 

 that it received Lake Albany de- 

 posits, 31 



Ballston Spa, 19 



Boulders, buried in sands or 

 mingled with gravels, 35 



Brick clays, 25 



Burnt Hills, 15, 16, 40 



Burnt Hills district, 26 



Carman, 24 



Cement blocks, sand for making, 



25 

 Chamberlain, cited, 39 

 Charlton hills, 8 

 Clays, Lake Albany deposits, 16, 19; 



brick, 25; Alplaus lake deposits, 



26 

 Clifton Park, 16, 38 

 Cook, J. H, cited, 8 



Drumlins, 15 

 Drummond creek, 29, 41 

 Dunes, 38 

 Dunsbach Ferry, 6, 24 



East Glenville, 31 



East Line, 29, 30, Z2>, 41 



Economic values of Lake Albany 



deposits, 24-27 

 Elnora, 24 



Floating ice, deposits from, 35~36 



Glacial scratches, 9-10 



Glacial till, see Till 



Glenville, 15, 17 



Glenville basin, 8, 29, 40 



Glenville hills, 6, 9, 14 



Gravel, Mohawk flood deposits, 34 



Hardin's crossing, 10 

 High Mills, 8, 16, 26, 41 



Ice erosion, 9; probable agency in 

 the formation of the Ballston 

 channel, lo-ii 



Knolls, 14 



Lake Albany, see Albany, Lake 

 Lake Alplaus, see Alplaus, Lake. 

 Lorraine formation, 5 



Malta, 22 



Maltaville, 8, 21 



Merrill, G. P., cited, 24 



Modified till, 28-36 



Mohawk channel, 5-6, 39 



Mohawk delta, 17, 18, 40; elevation 



of, 19 

 Mohawk flood deposits of glacial 



age, 34-35 

 Mohawk gorge, 11-13, 4i 

 Mohawk waters, diversion into 



Ballston channel, 31 ; two exits. 



ZZ 

 Molding sands, 24; theory of the 



secondary origin, 24-25 

 Morainic hills, 15-16 

 Mourning kill, 7, 29, 41 



Niskayuna, 15, 17, 24 

 Normans kill, 41 



43 



