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Proceedings of the Eoyal Society 
abuts against a well-defined bank of boulder-clay. This bank and 
terrace may be followed more or less clearly from the site of St- 
Mary Magdalene’s Chapel near Pinkie Salt Pans, south-east by the 
municipal boundary and Stoneyhill to Stoneyparkj where they are 
truncated by the modern “ cut ” of the Esk (see fig. 2). At Monk- 
tonhall they again come on, forming well-marked features — the 
terrace sloping gradually down to the more recent alluvium of the 
Shire Haugh opposite Inveresk. The counterparts of this sloping 
bank and broad terrace are also met with on the east side of the Esk, 
Thus, they are well seen between the river and Inveresk, from which 
they may be followed down to a little beyond the Waukmill, after 
which the bank sweeps away to the east by Inveresk House and 
Pinkiehill Colliery, until eventually it turns north by Pinkie Brae, 
and is at last truncated by the 25 to 30 feet beach, to; the east of 
Fig. 3. Section across superficial Deposits at Musselburgh. 1, Glacial Deposits | 
2, 45-50 feet terrace ; 3, 25 feet terrace ; 4, sea. 
Musselburgh Links. It may be added that this last-named beach 
has been excavated in our old terrace, across its whole breadth 
from west to east, so that in descending seawards from the bank 
which forms the margin of the 45 to 50 terrace, we first traverse 
