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terms and symbols I have adopted, will be sufficiently well 
understood, I will now briefly describe some of the general 
results derived from their application to particular districts ; 
and I might here remark, that all the directions given in this 
memoir are referred to true north, due allowance having been 
made for magnetic variation. 
The lower new red sandstone of the south-east of North- 
umberland is well seen in the coast-section at Tynemouth. 
South of the small cove the drifting is from N 15° E, and in 
the lower part, north of it, from N 9° E, whilst in the upper 
part, 40 or 50 feet above, it is from N 4° E. It will, there- 
fore, be seen that the directions are very uniform and regular. 
The mean of the whole is N 9° E. This bed is seen again 
about a mile north, at Cullercoats, on the other side of the 
ninety fathoms fault, and there I found that the direction of 
the current was from N 20° E. Between Hartley and 
Seaton Sluice, about six miles north of Tynemouth, there is 
a small patch of sandstone, very similar in character to the 
lower new red, and quite distinct from any other found in 
the coal strata of the vicinity, and hence I think it is in all 
probability a portion of that bed. This was drifted from 
N 17° E ; and it should, therefore, appear that, in a distance 
of six miles, nearly in the line of the current, its general 
direction was very uniform, there being only a difference of 
about 10° in the observed means at the various places; in all 
of which the structure indicated a current of considerable 
velocity, nearly the whole consisting of drifted beds. 
To describe in detail all the beds of the coal strata, seen 
in the coast section, would be very tedious ; I shall, there- 
fore, confine myself to certain points of considerable interest, 
and give a list of some of the beds, with their characters and 
the directions of the currents which deposited them. Under 
the two-gun fort at Tynemouth, at the bottom of the cliff, 
there is a considerable bed of sandstone, ^ from S 62° E, 
