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If one fills a pitcher half full of hot water, dilutes it with cold to a little above blood-heat (quickly tested by .pouring some over the back of the hand, or with a thermometer) and then quickly transfers it to a vacuum bottle to keep it. at or near the same temperature l'or a Sufficient lime lo grow urgent cultures, such as diphlh iia. much cheaper, easier and more practical results will be obtained than by the usual cumbersome methods. A special thermometer may be passed through ihe cork.doi:10.1001/jama.1912.04260010274018 fatcat:numwzerf3rhtdorzyqeq47bh7y