328 Geological Society. 
The Scissum Beds are 6 feet 2 inches thick at Broadwindsor, 
and very fossiliferous. They retain the characters exhibited at 
Broadwindsor in the area south of the L. & S.W. Railway; 
but at North Perrott—on the north—what appears to be the 
equivalent of their lowest portion is softer and thicker. The 
Scissum Beds also fail between East Chinnock and the Junction. 
The Scisswm Beds are succeeded by the Ancolioceras Beds—at 
the Conegar-Hill Section, Broadwindsor, two strata, each 1 foot 
thick. The Ancolioceras Beds extend into the Crewkerne district : 
they are well exposed at the Misterton Lime-Works and at other 
sections in the neighbourhood, and apparently were proved in the 
now filled-up quarry in Haselbury—Plucknett village. Probably the 
Ancolioceras Beds persist throughout the Crewkerne district. 
- The upper portion of the Murchisone Beds is the main horizon 
for Zeilleria anglica (Oppel). In the neighbourhood of Bea- 
minster specimens of this brachiopod are very abundant. The true 
Zeilleria-anglica Beds are absent from the Conegar-Hill Section, 
but occur at Drimpton—in the extreme south of the Crewkerne 
district ; and apparently were met with at Haselbury Plucknett— 
east of Crewkerne. 
Attached here and there to the top of the Murchisone-Anco- 
Zioceras Beds is ironshot rock, doubtless of late bradfordensis 
date—the date of the Rhynchonella-ringens Beds of the Sher- 
borne district. Thicker deposits may be present at Dinnington 
and Haselbury Plucknett. Deposits of concavi, discite, and, 
in places, of blagdeni hemerz may also be present in the neigh- 
bourhood of Dinnington. 
There is thus a great hiatus in the Inferior-Oolite Series of the 
Crewkerne district, there being—except possibly in the neighbour- 
hood of Dinnington—no rock present assignable to any hemera 
between those of bradfordensis and garantiane—the latter the 
date of the wide-spreading Upper Trigonia Grit of the Cotteswolds. 
The rock of garantiane date varies considerably in lithic 
characters, thickness, and abundance of organic remains in the 
district. 
It has not been possible to identify definitely the Zruellei Bed 
in the district. The main of the Top Limestones is of schlenbachi 
date. The Schlenbachi Beds ‘attenuate’ east of Crewkerne; but 
at Haselbury- Mill Quarry, in what the Author regards as their lower 
portion, is a very interesting Sponge-Bed, similar in appearance to 
that exposed in the Peashill Quarry, Shipton Gorge (Dorset). 
This Sponge-Bed is rich in microscopic organisms. The Zigzag 
Bed (very similar to its equivalent in the Burton—Bradstock— 
Beaminster—Broadwindsor District) has been observed at North 
Perrott and. Haselbury-Mill Quarry. 
The Seroff (fwsce hemera) was apparently observed by J. F. 
Walker in a quarry near Misterton Church. Fullers’ Earth Clay 
succeeds the Scroff. 
