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Our galleries are quietest on weekdays and weekend mornings. At busy times, particularly on Saturdays, you may need to queue for our temporary exhibitions.

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On the filtration of potable water / [William Ripley Nichols].

Water supply : considered mainly from a chemical and sanitary standpoint / by Wm. Ripley Nichols.

Water supply : considered mainly from a chemical and sanitary standpoint / by Wm. Ripley Nichols.

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Active filters:

On the filtration of potable water / [William Ripley Nichols].

Water supply : considered mainly from a chemical and sanitary standpoint / by Wm. Ripley Nichols.

Water supply : considered mainly from a chemical and sanitary standpoint / by Wm. Ripley Nichols.