60
    • P804641
    • Section of the entrance lock which when...
    • P804642
    • Section of the entrance lock which when...
    • P804643
    • The gantry used in transporting...
    • P804644
    • Excavation for the footings of the lock...
    • P804645
    • Alluvial clay and peat resting on...
    • P804646
    • Alluvial clay and peat resting on...
    • P804647
    • Snags or yew trunks brought down by the...
    • P804648
    • Snags or yew trunks brought down by the...
    • P804649
    • Alluvial clay showing section of tree...
    • P804650
    • Peat overlying clay with a yew trunk...
    • P804651
    • Roots of plants which formed the peat...
    • P804652
    • Roots of plants which formed the peat...
    • P804653
    • Clay filling an old creek, formerly Ham...
    • P804654
    • Clay filling an old creek, formerly Ham...
    • P804655
    • Clay filling a washout in the peat...
    • P804656
    • Sun cracks in alluvial clay exposed by...
    • P804657
    • Section of Lea Valley Gravels in the...
    • P804658
    • Section of Lea Valley Gravels in the...
    • P804659
    • Section in the Low Level Terrace of Lea...
    • P804660
    • Cross section of old water course in...
    • P804661
    • The Southgate Council Gravel Pit in...
    • P804662
    • The Southgate Council Gravel Pit in...
    • P804663
    • Section of Lower Terrace Gravels. Plant...
    • P804664
    • Howe Hill Gravel Pit. These finely...
    • P804665
    • Howe Hill Gravel Pit. These finely...
    • P804666
    • Howe Heath Gravel Pit. Finely bedded...
    • P804667
    • Howe Heath Gravel Pit. False or current...
    • P804668
    • Scott and Brantons Tollgate Pit....
    • P804669
    • Scott and Brantons Tollgate Pit....
    • P804670
    • Martins Pit, opposite Acacia Road,...
    • P804671
    • Martins Pit, opposite Acacia Road,...
    • P804672
    • Castle Cross Gravel Pit. Finely bedded...
    • P804673
    • Castle Cross Gravel Pit. Finely bedded...
    • P804674
    • Stone Court Gravel Pit, west side of...
    • P804675
    • Stone Court Gravel Pit, west side of...
    • P804676
    • Stone Court Gravel Pit, west side of...
    • P804677
    • Stone Court Gravel Pit, west side of...
    • P804678
    • Redeposited flint layer. Excursion to...
    • P804679
    • A �Fossil Mare's Nest�. Excursion to...
    • P804680
    • Our Special. This line under...
    • P804681
    • The Switchback. This line under...
    • P804682
    • A valley being crossed. A cutting in...
    • P804683
    • Entrance to a tunnel 300 yards long...
    • P804684
    • False bedding in glacial sands at...
    • P804685
    • False bedding in glacial sands at...
    • P804686
    • Watton cutting in boulder clay and...
    • P804687
    • Watton cutting in boulder clay and...
    • P804688
    • Section of Westleton Shingle at 406 ft....
    • P804689
    • Basement beds of the London Clay, bent...
    • P804690
    • Reading Sands, consisting of current...
    • P804691
    • Reading Sands, consisting of current...
    • P804692
    • A mass of pebbles driven into the...
    • P804693
    • Reading Beds. Excursion to Ayot, May...
    • P804694
    • Current bedded white and buff sands of...
    • P804695
    • A mass of green clay projecting as a...
    • P804696
    • Our rendezvous. [The �Five Miles from...
    • P804697
    • Barrow near Upware. Excursion to...
    • P804698
    • Trench round the barrow. Excursion to...
    • P804699
    • Sections of Coral Rag, resting on...
    • P804700
    • Sections of Coral Rag, resting on...