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VOL. XIV. (1) FOREST BED—-GEOLOGY 23 
clay when taken was in close proximity to the underside 
of the peat, a position I know from experience not favour- 
able for the preservation of these organisms." 
I will now give Mr. Wright's list, placing the specimens 
in geological succession, beginning with the lowest Post- 
Glacial Bed, viz., No. 2 in Section. 
Clay under peat (No. 2 in Section) :—Weight of clay 
235 oz. Troy. After washing, fine, 2°5 0z.; coarse, 2 02. 
Stones very much rounded. A very fine clay, mixed up 
with vegetable matter. There were a few broken speci- 
mens of Foraminifera, one Ostracod, and two Diatoms. 
FORAMINIFERA. 
SPECIES : REMARKS : 
Psammosphera fusca, Schw.? Two broken specimens. 
Nonionina depressula (W. & J.). Two specimens, one very much worn. 
Polystomella striato-punctata (F. & M.). One very much worn specimen. 
“Blue Clay lying directly on peat bed,” No. 4 on 
Section taken at A :—Weight of clay 20°3 oz. Troy. After 
washing, fine, ‘4 0z.; coarse, a few fragments of shells and 
one minute stone, weighing ‘0002 oz. A very fine clay 
1 In an excellent paper by Mr A. Strahan “on Submerged land-surfaces at Barry, 
Glamorganshire,” Q.J.G.S., 1896, numerous sections of similar beds to those described in 
this paper are given. Dock excavations, if watched, yield the best results in this kind of 
geology, from the large aréa that is uncovered. Referring to page 480, I am inclined to 
identify peat No. 9, “ Peat with large logs, including some of oak” lying upon “decomposed 
green Keuper Marls, traversed by roots in position of growth and joining on to the peat 
above.—Among the roots are some conifers,” with the bed exposed at Westbury. Certain 
peat beds are intercalated in the overlying clays and silts, but these can be formed concur- 
rently with the deposition of estuarine silt, as is shown frequently in such sections. The 
timber and branches may be a fluviatile accumulation, if unaccompanied by roots and 
rootlets striking into the underlying beds. In page 481 this peat is described as underlaid 
by bed No. ro, in which “at a depth of about 9 feet blue silty clay (No. 10) of the usual 
character could be seen and dug out through the timbers.” This clay is, if my reading 
be the correct one, the equivalent of the blue clay No. 2 of Westbury. That the Peat and 
Forest Bed should lie at one place on the Keuper Marls and at another on marine silt or 
clay, is only what might be expected, as this clay and silt has been, if my views be accepted, 
: exposed to long continued river and subzerial denudation, when the land and the deposit 
upon it was being upraised (event No. 3, p. 28), previous to and during the growth of the 
Superior Peat and Forest Bed. During this time of river denudation and deposition the 
phenomena of one Peat and Forest Bed superimposed upon another, or separated by a 
clay bed like what occurred at Barry Dock, may have originated. 
