AND OF THE IfEIGHBOUKHOOD OF WATFORD. 



99 



Fig. 4. — General Section at Mr. Line's Briehjard, 

 near Hertford.'^'' 



''^mM 



(Scale, 8 feet to an inch ) 



'i1^m3:'^rh^^i". 



- ('^ 



[a) Small pipes of gravel, iu parts. 



{J)) Tliiu wash of Loudon Clay, vdih. flints 

 and pebbles, chiefly at the N.W. end. 



( {c) Dark brown clay ; very little, and at 

 j the S.E. end only. 



^ (d) Basement-bed. Brown bedded sandy 

 ^ clay and (in lower part) clayey sand, 

 £ with thin layers of clay. Green 

 grains here and there, and small fer- 

 ruginons concretions, in one of which 

 I found an impression of a bivalve. 

 At the bottom a laver of black flint- 

 V pebbles (t) ' about \'2k 



[The above is a long section ; its con- 

 tinuation downwards is from smaller pits 

 just below.] 



^{f) Pale grey and brownish sand and 

 clay, irregularly resting on, or passing 

 down into, very pale greenish ochreous 

 clay {/') 2 to 3 



{g) Pale lilac firm fine sand (rather like 

 the purplish saud of East Kent) thin- 

 ning out at the N.W 1^ to 



[h) Purple grey red and brown mottled 

 clay, in part sandy ; passing into the 

 bed below 2 to 3 



(i) Pale grey sandy clay with some 

 small flint-pebbles; passing into the 

 bed below nearly 2 



(k) Light-grey sand streaked with 

 brown, false-bedded; with an intei'- 

 rupted layer of small flint-pebbles 



close to the top 16 



(or more). 



(/) Flints (some large) and flint-pebbles 



. in sand, touched at bottom. 



* " For some way east of Hatfield Kiln sections of any sort are rare 



However, there is a clear spot at the kiln half a mile south-west of Eush Green 

 near Hertford. In an old overgrown pit close to and east of the house there is 

 London Clay. The present pits (1869) are north-west of the house, and give the 

 only good section in the neighbourhood." — "Whitaker, ' Mem. Geol. Surv.' vol. 

 iv. p. 227, fig. 58. 



