460 
fishes. I believe, in this stratum alone, occur the remains of those 
small animals figured in Yol. II. PI. XIII. Fig. 24, 31, 34, 38, and 39, 
and which from several of their characters seem to deserve to be 
regarded as belonging to the family of encrinites. 
On this chalk is depositeda thick stratum of white sand, over which 
is a sand of a darker colour, and above this various thin strata, or 
patches, of marl, shells, sandstone, coarse limestone, frag- 
ments of shells, pebbles, See. The sand, and several of these 
strata, exist in the neighbourhood of Woolwich, and may be distinctly 
traced through different parts of Kent ; but do not appear to have 
been examined in the other parts of the island. The shells of these 
strata are chiefly of the genera calyptrcea, cerithium, pleurotomia, 
natica, and cyclas ; but from their fragile and mutilated state, many 
of the species, or even genera, cannot be made out. In these shells 
a considerable approach is observable to the shells of the present ocean. 
Above this is the stratum of clay, employed round the metropolis 
for brick and tile making, containing septaria of different sizes, lying 
horizontally in parallel lines. In this stratum are found pleurotomitce, 
cerithitce, similar to those of the preceding stratum, the shells figured 
by Brander, as Hampshire fossils, nautilitce, an immense number of 
fruits, fossil wood, and the numerous other remains noticed by Jacobs 
and others as Shepey fossils. Similar fossils with those obtained at 
Shepey, and in Hampshire, have been also found in this stratum, at 
Kew and at Highgate. At the latter of these places, and at Shepey, 
a resinous substance has been also found, which yields, on friction, a 
peculiar aromatic odour. 
At Walton, near Harwich, as has been already noticed, the remains 
of several quadrupeds have been found. There have been obtained the 
remains of the elephant, rhinoceros, Irish fossil elk, hippopotamus, ox, stag, 
Sec. Those which I found myself were on the beach, and the others 
I had been taught to suppose had been dug out of the blue clay. 
This, however, I have been led to doubt from the kind communica- 
