528  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1901.          [bull.  260. 
6-12.   Clinton,  Oneida  County.     A.  H.  Chester,  analyst.     Ibid.,  p.  802. 
13-17.   Oriskany  Falls,  Oneida  County.      A.  H.  Chester,  analyst.      Ibid. 
18.  Putnam  quarry,  Oriskany  Falls,  Oneida  County.      Ibid.,  p.  803. 
19.  Manning  quarry,  Columbia,  Herkimer  County.      Ibid.,  p.   788. 
20.  Cobleskill  Quarry  Company,  Cobleskill,  Schoharie  County.  C.  F.  McKenna,  analyst. 
Twentieth  Ann.  Rept.  U.  S.  Geol.  Survey,  pt.  6,  p.  427. 
21.  22.   Howes  Cave,  Schoharie  County.     C.  A.  Schaeffer,  analyst. 
23-25.  Callanan  quarry,  South  Bethlehem,  Albany  County.  Bull.  New  York  State  Mus., 
No.  44,  p.  771. 
26.  Howes  Cave,  Schoharie  County.  C.  A.  Schaeffer,  analyst.  Twentieth  Ann.  Rept. 
U.  S.  Geol.  Survey,  pt.  6,  p.  427. 
27,  28.   Hudson,  Columbia  County.      Ibid.,  p.  427. 
29.  Holdredge  quarry,  Catskill,  Greene  County.  II.  Ries,  analyst.  Bull.  New  York 
State  Mus.,  No.  44,  p.  787. 
30.  Turner  quarry,  Wilbur,  Ulster  County.      Ibid.,  p.  822. 
31.  Rondout,  Ulster  County.      Ibid. 
TULLY'  LIMESTONE. 
DISTRIBUTION. 
The  thinness  of  the  Tully  limestone  would  probably  allow  it  to  be 
disregarded  as  a  Portland-cement  material  if  it  were  not  for  its 
advantageous  distribution.  It  occurs  only  in  central  New  York,  and 
occupies  a  greater  area  than  any  other  limestone  in  that  part  of  the 
State.  Its  line  of  outcrop,  moreover,  crosses  all  the  Finger  lakes,  on 
the  shores  of  most  of  which  the  limestone  is  well  exposed,  and  the 
belt  is  crossed  by  numerous  railroad  lines  leading  to  the  coal  regions 
of  Pennsylvania.  With  these  advantages  of  position,  even  a  rela- 
tively thin  limestone  bed  is  worth  considering,  and  one  Portland 
cement  plant  that  uses  the  Tully  limestone  is  already  in  operation. 
The  most  western  known  exposure  of  the  Tully  limestone  is  near 
Reed  Corners,  Ontario  County.  From  this  point  it  runs  southeast- 
ward through  on  near  Gorham,  Stanley,  Halls  Corners,  and  Dresden, 
disappearing  below  the  waters  of  Seneca  Lake  opposite  the  village  of 
Starkey.  It  reappears  on  the  east  shore  of  the  lake  about  5  miles 
south  of  Willard,  and  is  exposed  almost  continuously  along  the  lake 
shore  as  far  north  as  Willard.  Here  it  turns  eastward  through  Ilavt 
Corners,  then  southeastward  near  Sheldrake  to  the  Cayuga  Lake 
shore  east  of  Covert,  and  thence  southward  along  the  west  shore 
through  Trumansburg  to  Glenwood.  Its  most  available  outcrops 
are,  howeAer,  on  the  east  shore  of  Cayuga  Lake,  which  it  follows 
closely  from  Portland  Point  north  to  opposite  King  Ferry.  Turn- 
ing northeastward  the  limestone  outcrop  leaves  the  lake  and  passes 
through  Poplarridge,  Sherwood,  and  Scipio.  From  this  point  to 
its  most  easterly  known  outcrop,  which  is  near  Smyrna,  Chenango 
County,  the  outcrop  of  the  Tully  limestone  is  too  irregular  for  ready 
description.  It  is  sufficient  here  to  indicate  its  course  by  saying  that 
the  principal  villages  and  stations  on  or  near  the  outcrop  are,  in 
order  eastward,  Cascade,  Locke,  Moravia,  Miles,  Glenhaven,  Scott, 
Spofford,  Borodino,  Otisco  Valley,  Tully,  Truxton,  Cuyler,  Deruvter. 
Georgetown,  and  Smyrna. 
