Page:Quarterly Journal of the Geological Society of London, vol. 27.djvu/400

 tween the outliers is not in place, but is reconstructed, being simply the wash from either side. Another difference is the colouring as London Clay of a small patch on the more easterly and smaller outlier, to which alone the following notes refer (the other having in the cliff nothing higher than the sand of the Woolwich beds ). Most likely at the time when my friend Mr. Bristow mapped it (some 12 or 15 years ago) there was no clear evidence of the presence of this formation, though it was suspected by Mr. Prestwich*.

Fig. 2. — Diagram Section of the Cliff a quarter of a mile west of Newhaven Harbour.

a. London Clay. b. Woolwich and Reading Beds. c. Chalk. Gravel omitted. The dotted lines show the former continuation of the ground and the beds.

Fig. 3. — Section in part of the Western Ditch of Newhaven Fort. a. Gravel and Sand. b. Stiff laminated dark grey Clay (Woolwich Beds).

Fig. 4. — Section in part of the Western Ditch of Newhaven Fort.

a. Gravelly Soil. b. Light-coloured Loam, with gravel at the edge. c and c'. Stiff brown and grey clay. d. Shelly clay. e. Sand, hard and blackish at top, light-coloured below. The shape of the ground will be understood from the diagram section (fig. 2), which also serves to show how higher and higher beds have been noticed by later observers. The extent of section


 * Quart. Journ. Geol. Soc. vol. x. p. 83.