Lantern Slides

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Deptford boiler house

Deptford covered reservoir

Deptford engine house

Deptford pumping station

Deptford turbines

Depth of strata in London wells

Diagram of burst mains

Diagram of natural flow at Teddington

Diagram of pressure due to closing of plugs and cocks

Diagram of rapid sand filters

Diagram of stages of river supply

Diagram of Thames Valley stations

Diagram of working out the mains at Hampton

Diatom

Diatom

Diatom

Diatom

Diatom

Diatom and debris

Diatoms

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