000 01074cam a22002771 4500
001 gs 28000083
003 DLC
005 20260227111332.0
008 790607s1927 ilua b s000 0 eng
010 _ags 28000083
035 _a(OCoLC)5045249
040 _aDLC
_cTxCM
_dOCoLC
_dDLC
042 _apremarc
050 0 0 _aQE105
_b.T5
100 1 _aThwaites, F. T.
_q(Fredrik Turville),
_d1883-1961.
245 1 0 _aStratigraphy and geologic structure of Northern Illinois,
_bwith special reference to underground water supplies,
_cby R. T. Thwaites.
260 _aUrbana, Illinois
_a[Springfield,
_bJeffersons Printing and Stationery Co.]
_c1927.
300 _a49 p.
_billus.
410 2 0 _aIllinois State Geological Survey
_tReport of investigations
_vno. 13
500 _aAt head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.
500 _aPlates folded in pocket.
504 _aBibliographical footnotes.
650 0 _aGeology
_zIllinois.
650 0 _aWater-supply
_zIllinois.
650 0 _aGroundwater.
999 _c26621
_d26621