Lantern Slides

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Bacillus Subtilis

Bacillus subtillus

Bacillus Typhosis

Bacteria in 1cc of effluent

Bacteriological incubators

Bacteriological laboratory

Bacteriological laboratory

Bacteriological laboratory

Bacup corporation cowpe reservoir

Bank at Littleton storage reservoir

Bank interior and intake at Littleton

Barn Elms No. 15 filter wall

Barnes filter bed

Barrowing sand from filter bed at Hampton

Bathing in Fleet River

Battersea chimney stack

Battersea covered reservoir construction

Battersea engine room

Battersea filter beds

Battersea filter beds cleaning

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