1859 The Book of one Hundred Beverages - BERNHARD (William) -

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AQUJIOUS B:IVBUQJI& .~ , sold at high prices~ and it posaesses tbe greM. recommendation of being readily cleaned. V ariovs ehem.ical substances are occasionally added to water for the purpose of freeing it from eome of it.a impurities. Alum is often used to purify thick mulumbers' and hardware shops ; but the filter here described ia needed for river and rain water.]