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By means of a thermometer the temperature is indicated, and when it shows a very low temperature, the behavior of the oil, subject to this freezing mixture, may be observed and noted.

Robin51 has demonstrated the existence of albuminoid matters in water condensed upon vessels containing freezing mixtures and placed in overcrowded wards of hospitals.

This doctrine also explains the effect of freezing mixtures, as that of salt and snow.

The cold of liquid air is far greater than that of ice or even a freezing mixture of salt and ice.

Chloramine was prepared by cooling dilute solutions of bleach and ammonia and adding the latter to the former contained in a flask surrounded by a freezing mixture.