212 
THE MIDDLE LIAS OF NORTHAMPTONSHIRE. 
7.— Hard blue clay—depth unknown. 
The section is probably twelve feet or more deeper, but so 
covered up that nothing more could be made out. 
In a lane to the north of Newniiam one of the soft beds of 
the “ Margaritatus ” Zone may be seen. Judging by the 
condition of the bed, and the fossils found in it, I consider it 
to be either “ I ” or “ Ii” of the typical section. It is light 
coloured, micaceous and ferruginous, and contains:— 
Ammonites margaritatus, Pholcidomya ambigua, Limea acuticosta, 
Pentacrintes, and Fucoids , dec. 
There is a small stone pit on the road leading from 
Daventry to Braunston, about a mile-and-a-half from Daventry, 
which presents some features I have not noticed elsewhere. 
Below is the section. 
Section near to Daventry. 
Feet. In. 
1. —Soil containing many pebbles from the drift ... 1 6 
2. —Irregular sandy bed, containing many pieces of 
fossiliferous stone, fragmentary and waterworn. 
The fragments seem to contain fossils from at 
least three of the higher beds, but particularly 
from “ F ” and “ H.” Fossils : •— Ammonites 
spinatus, Terebratulapunctata, Terehratula Walfordi 
(a single specimen of each), Belemnites, Turbo, 
Avicula sp.? (very abundant), Avicula incequivalvis, 
Limea acuticosta, Pecten liasinus, Protocardimn 
truncatum, Modiola, Ostreci cymbium, dc. ... 1 6 
8.—Hard compact rock, like that found at the base of the 
“ Margaritatus” Zone atChalcomb and Staverton. 
Very many fossils, but the stone so hard that few 
could be got out: —Belemnites (very abundant), 
Pecten cequivalvis (large), Pecten liasinus (large), 
Ostrea, Pleuromya, Protocardium truncatum, Limea 
acuticosta, dc. No Bhynchonellce or Terebratulce. 
Thickness, one foot three inches... 
4.—Hardened, sandy, micaceous bed, could detect 
no fossils. Thickness, two feet six inches ... 3 9 
Beds 3 and 4 in the above section can only be separated 
by a close examination ; at a very slight distance away they 
appear like one block of stone only. I believe bed No. 3 is 
“ Ii ” of the typical section, but have never seen a bed like 
No. 4 underlying it elsewhere. 
A little way out of Daventry, on the Welton Road, two or 
three of the lower beds of the “ Margaritatus" Zone may be 
seen. About a quarter-of-a-mile along this road the banks 
are very steep and rather high, and near the top is a 
