000 01247cam a22002891 4500
001 gs 39000002
003 DLC
005 20260227111343.0
008 780901s1938 iluab b s000 0 eng
010 _ags 39000002
035 _a(OCoLC)4185446
040 _aDLC
_cUU
_dOCoLC
_dDLC
050 0 0 _aQE105
_b.A25 no. 52
100 1 _aGrim, Ralph E.
_q(Ralph Early),
_d1902-
245 1 0 _aPetrology of the Pennsylvania underclays of Illinois,
_cby Ralph E. Grim and Victor T. Allen.
260 _aUrbana, Ill.,
_bPrinted by authority of the state of Illinois,
_c1938.
300 _a1485-1514p.
_billus(map)2pl. on ll.,tables(part fold.)
_c25cm.
490 0 _aIllinois. State geological survey. Report of investigations
_vno. 52
500 _acover title.
500 _aAt head of title: State of Illinois ... Department of registration and education ... Division of the State geological survey ...
500 _aReprinted from the Bulletin, Geological Society of America, vol. 49, 1938.
504 _a"Works to which reference is made": p. 1500-1510.
650 0 _aPetrology
_zIllinois.
650 0 _aClay
_zIllinois.
700 1 _aAllen, Victor T.
_q(Victor Thomas),
_d1898-
_ejoint author.
740 0 _aPennsylvanian underclays of Illinois.
999 _c27501
_d27501