| 526 | Windermere South Basin Seismic Survey Data 1983 Section 15 |
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| 527 | Windermere South Basin Seismic Survey Data 1983 Section 13 |
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| 528 | Windermere South Basin Seismic Survey Data 1983 Section 12 |
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| 529 | Windermere South Basin Seismic Survey Data 1983 Section 09 |
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| 530 | Windermere South Basin Seismic Survey Data 1983 Section 08 |
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| 531 | Crummock Water Seismic Survey data 1987-Section 07 |
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| 532 | Crummock Water Seismic Survey data 1987-Section 06 |
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| 533 | Crummock Water Seismic Survey data 1987-Section 05 |
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| 534 | Crummock Water Seismic Survey data 1987-Section 04 |
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| 535 | Crummock Water Seismic Survey data 1987-Section 03 |
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| 536 | Crummock Water Seismic Survey data 1987-Section 02 |
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| 537 | Crummock Water Seismic Survey data 1987-Section 01 |
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| 538 | Crummock Water Seismic Survey data 1987-OS map with transects |
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| 539 | Letter of confirmation of geophysical surveys made in conjunction between Professor G.E.G. Sargent and the FBA 1983-1987 |
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| 540 | Professor Gerald Sargent second letter 19 January 1988 |
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| 541 | Professor Gerald Sargent letter 19 January 1988 |
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| 542 | Dr Elizabeth Haworth letter to Prof. G. Sargent January 28th 1987 |
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| 543 | Professor Gerald Sargent letter 6 June 1987 |
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| 544 | Draft copy of Surveys June 1987 lakes Ullswater, Crummock Water, Wastwater, Ennerdale Water and Windermere |
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| 545 | Releases of natural radioactivity from British steel plants |
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| 546 | Windermere South Basin Seismic Survey Data 1983 Section 06 |
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| 547 | Thackthwaite Beck Automatic Weather Station |
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| 548 | River Fisheries Habitat Inventory Phase 2: Methodology Development for Juvenile Salmonids |
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| 549 | Pumping station - efficiency of operation and cost for a design life span (NRA R and D 363/1/NW) : survey of pumping installations and design philosophy initiatives |
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| 550 | Water resources planning guideline |
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