XXIV 
PROCEEDINGS OF THE 
mentioned a tribe called “ Cunobelingas ” as dwelling in this neigh¬ 
bourhood, and coins of Cunobeline had been found in the vicinity. 
In Roman times the place was inhabited, for at Moneybury Hill, 
which received its name from the coins found there, Roman re¬ 
mains had been discovered. In making a road many coins had 
been found ranging from a.d. 62 to a.d. 250, all of a large size, 
and also certain other smaller coins bringing the date down to 270. 
A great part of these were really forgeries. Moulds had been 
made from the Roman coins in which the spurious ones had been 
cast. There were evidently people in Hertfordshire in those days 
who were willing to turn an honest penny. 
The return walk was then taken down the hill by way of 
Aldbury and direct to Tring Station. 
Field Meeting, 9th June, 1888. 
HARPENDEN. 
This meeting was held in conjunction with the Bedfordshire 
Natural History Society, and under the direction of Dr. Morison, 
F.G.S. Its object was the study of the geological features of the 
neighbourhood of Harpenden. Owing to wet weather it was not 
numerously attended. 
Assembling at the Midland Station, Harpenden, a section of 
the Upper Chalk by the roadside near the station was first examined, 
and the party then proceeded to the Cold Harbour cutting on the 
Luton branch of the Great Northern Railway, where the Chalk 
Rock, which forms the top bed of the Middle Chalk, is well 
exposed. There is also evidence of its presence close to the surface 
a little lower down the valley of the Lea, its most eastern point 
in Hertfordshire. 
After crossing the fields for a short distance the Midland line 
was again reached, and at the new junction (just about to be 
opened) of the Hemel Hempstead branch, connecting it with the 
down main line, a good section of the Upper Chalk showed the 
extreme irregularity of its upper surface, due doubtless to its 
varying solubility. The depressions or “ pipes” in the chalk thus 
produced by solution were seen to be filled up by clay-with-flints, 
believed to be the insoluble residue of the chalk, and by brick- 
earth, sand, and gravel, presumably of glacial age. 
"Walking along the line, by permission of the Manager of the 
Midland Railway, the cutting was soon left for an embankment 
crossing the Harpenden valley, and it was noticed how the bottom 
of the valley is covered with river-gravel, showing that a stream of 
water must at one time have flowed along it, doubtless to join the 
River Lea. The Chalk, which comes to the surface on the slopes 
of the hills, was seen to be capped on their summits by clay-with- 
flints and glacial deposits. 
In a shallow cutting mottled clay and red and white sands 
showed the presence of the Woolwich and Reading Beds. They 
also appear in a disused brickfield a short distance to the south of 
the line, but there was not time to visit it. 
