26 
FEET. 
(Chalk (with rough gravel 7 feet down on 
one side of the well) ve 28 
Chalk, layers of flints every 6 ‘inches ... 10 
Flints and chalk Ba vot HG 
Flints and rock chalk ee wed ee 
Hard chalk... : mat SS ae lle 
Colle Baaeae SET | wot oa ae 
Chalk and flints vi “ fae ip 
Blue clay... 4 
Chalk and flints 12 
Grey chalk .. 1 
Chak and scattered flints 8 
Soft chalk . 7 
Total. ; 152 
NOTE.—I am indebted to Mr. W. Topley, F.G.S., of the Geological Survey, for the 
Coloured Map and Section ; to Mr. J. L. Lobley, F.G. sy for the Wood-cuts (figs. 1 and 4) 
used in his Lecture on the Cretaceous Rocks, printed in the Proceedings of the Watford 
Natural History Society; to Mr. A. Smee, ER. 8., for the Figures 2 and 3, used in his 
work, ‘“‘My Garden;” and to Mr. W. Whitaker, F.G.S., for permission to insert the 
paragraphs from the memoirs of the Geological Survey, vol. iv., and to Prof, T. R, Jones, 
F.R.S., for the netes on the Foraminifera. 
