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Archival Content Notice: This post was published in 2015 and may contain outdated information. If you need assistance accessing this content, please contact UC Libraries.
A surviving set of “spirit bubbles:” for testing the
proof of alcoholic beverages.
Issue 34 explores some of the curious uses of glass balls to approximate the density of liquids.
Click here for all other issues of Notes from The Oesper Collections and to explore the Jensen-Thomas Apparatus Collection.