xii FLORA OF OXFORDSHIRE. 
pp. 118-307, 1859. Prof. Phillips. South-Eastern Attenuation 
of the lower Secondary Rocks and probable depth of the Coal 
Measures under Oxfordshire, 1859, EZ. Hull, Journ. Geol. Soc., 
vol. xvi. p. 63. On the Chalk in Oxfordshire, Journ, Geol. Soc., 
nol. uvit. p. 166, 1861, W. Whitaker. Geology of the Eastern 
portion of the Banbury and Cheltenham Railway, T. Beesley. 
Geological Proceedings, vol. v., No. 4. Geology in Kelly's 
Directory of Oxon, Berks, and Bucks, 1883, by W. Jerome 
Harrison. 
The Ordnance Maps of the County:—Geological Survey, whole 
sheets, no. 7, 13, 34, 443 quarter sheets 45 N.W., 45 S.W., 
45 V.L., 45 SL, 53 S.W., with descriptive memoirs. Geology 
of part of Oxfordshire and Berkshire by Hull and Whitaker. 
Geology of Country round Banbury, Woodstock, Bicester, and 
Buckingham by A. H. Green. Geology of the Country round 
Woodstock by EH. Hull. Geology of the London Basin by 
W. Whitaker. 
The Geological formations met with in Oxfordshire are— 
Marlstone. 
Upper Lias Clay. 
| Inferior Oolite. 
} Lower Lias Clay. 
Great or Bath Oolite. 
Forest Marble. 
Cornbrash, 
Oxford Clay. 
Lower Calcareous Grit. 
Coral Rag. 
} Kimmeridge Clay. 
MIDDLE OOLITE ......... 
UPPER OOLITE ............ Portland Sand. 
Portland Stone. 
CRETACEOUS LOWER... Lower Greensand. 
Gault. 
CRETACEOUS UPPER id Upper Greensand. 
Chalk. 
FOCHIN ED ccsmeauseyeoteetivescacss Woolwich and Reading Beds. 
POST-PLIOCENE-DRIFT,. High Level Gravels and Clay, Low 
Level Gravels. 
In the extreme north-west of the county are found the oldest 
rocks, and as the county is traversed from the Warwick boundary 
