72 LOWER OOLITIC KOCKS OF 
the series. On the Geological Survey May it has been coloured 
the same as the Inferior Oolite limestone, but Bristow who 
surveyed the area has expressed the opinion that the Ham Hill 
Stone is the equivalent of the upper portion of the sands near 
Yeovil, which contain occasional thin and interrupted beds ot 
limestone."* This view of the case was originally pointed out by 
Prof. Buckman,f and is confirmed by an examination of the areas. 
Thus layers of shelly limestone like Ham Hill Stone, appear 
in the upper part of the sands in the railway-cuttings near 
Yeovil junction, and in some of the deep road-cuttings or " hollow 
ways " of Babylon Hill. These shelly limestones may be traced 
in places also to the south and south-west of Yeovil, as at North 
Perrot, east of Crewkerne : and they evidently belong to the zone 
of Ammonites opalinns. 
The fossils obtained at Ham Hill itself, are as a rule so 
fragmentary that precise identification is impossible, but while 
on a visit to the quarries in 1885, in company with Mr. F. J. 
Bennett, I was fortunate in finding examples o Rhynchonella 
cynocephala ; a discovery subsequently confirmed by the Rev. 
H. H. Win wood. J I have since" learnt that the species was 
recorded, though with some doubt, by Prof. Buckman. 
The following is a section of one of the principal quarries at 
Ham Hill (belonging to Messrs. Charles Trask and Sons) : 
FT. IN. 
(~ (" Sand and thin soft stone. 
" Ochre Beds " : 40 feet < Sand with thicker beds of stone : 
I Ammonites. 
Main mass of freestone, indis- 
tinctly jointed, and false-bedded. 
Ham Hill Stone : false- 
bedded shelly and 
sandy limestones of . 
various shades of < 
brown and yellow 
50 feet. 
Good stone obtained 7 or 8 feet 
down, and thence to bottom, in 
the following sequence : 
Yellow Beds (chief part) - 1 or n 
Coarse Bed - - J 
Grey Beds (most durable) 
about 8 
Stone beds (not worked) 6 or 7 
Sands with nodular beds of 
Yellow Sands, &c. : \ calcareous sandstone ; seen 
about 80 feet. ^-cutting on west side 
of Ham Hill. ( Yellow 
L Brim Sands," of Moore.) 
[For further particulars of the stone, see under " Economic Products," 
p. 475.] 
The Grey Beds rise towards the surface at the noi them end of 
the Camp, to the south-east of the Inn. 
A quarry on the south-eastern side of Ham Hill, on the 
Odcombe road (north side), showed thin flaggy tind'sauJy beds, 
* Damon's Geol. Weymouth, 1884, pp. 219 and 225. 
f Proc. Somerset Arch. Soc., vol. xx. p. 162 ; Quart. Journ. Gol. Soc., vol. xxxiii. 
p. 3 ; vol. xxxv. pp. 737, 740. 
J H. B. W., Proc. Bath Nat. Hist. Club, vol. vi. pp. 182, 224. 
Quart. Journ. Geol. Soc., vol. xxxv. p. 743. 
