The inquiry into the relative efficiency of water filters in the prevention of infective disease : a special report to the "British Medical Journal" / by G. Sims Woodhead and G.E. Cartwright Wood.

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The inquiry into the relative efficiency of water filters in the prevention of infective disease : a special report to the "British Medical Journal" / by G. Sims Woodhead and G.E. Cartwright Wood. Public Domain Mark. Source: Wellcome Collection.