290 



Professor T. G. Bonuey ^^ Ret: E. Hill— 



April. On approaching the site of the ' bluff ' along the shore from 

 Cromer, we perceived tliat not only the arch but also the.little headland ^ 

 had disappeared ; the cliffs rising from a fairly even base to a height 

 of over 150 feet. On the steep face of one of them we noticed a 

 wliitish patch, in form a rather elongated oblong, with its base a very 

 few yards above the beach, the colour of which suggested the presence 

 of chalk. Perhaps a coixple of hundred yards before reaching it we 

 came upon a well-laminated dark clay," rising from the beach and 

 running obliquely along it to the base of the cliff. After passing it 

 we found the ordinary ' boulder-clay ' of the Contorted Drift group 



>W 



Scalfi 0+ lyards '\ vv.W.W 



\U.\r\l 

 Fig. 1. Sketch-plan (by Eev. E. Hill) of the 'westerly chalk bluff' at 

 Trimingham.^ The broken line indicates the boundary of chalk or clay 

 in April, 1905 ; the continuous one that observed on almost the same day 

 in 1906. A, C, E correspond with the masses bearing these letters on 

 Plate XXII, Geol. Mag., 1905, p. 400. 



exposed here and there beneath sand or shingle on the shore, and 

 on arriving at tbe above-named light-coloured patch obtained the 

 following section. Tbe face of the cliff on either side of it, for some 

 little distance, consisted of a yellowish-grej' clayey sand, which here, 

 as is locally not infrequent, was less conspicuously bedded than in 

 many places. The light-coloured patch, which was about 16 yards 

 broad at the base and 18 yards or more in greatest height (the cliff at 

 its back recedes just enough to be out of sight when viewed from the 

 shore •* at a distance of 30 or 40 yards), included on its eastern side 



^ We believe that this was at the Marl Point of the Ordnance Survey map. 



" It looked like a representative of the Forest Bed group, but we did not 

 happen to see any rootlets or stems. 



^ Eeproduced from Professor Bonney's paper in Geol. Mag., September, 

 1906, p. 401. 



* The tide had not risen much on the occasion of our second visit, when 

 photographs were taken. 



