Manual of dental surgery and pathology . be readily prepared by beating nitrateof ammonia in a glass flask (Fig. 291) and collecting tbe pro-ducts over water, wbich may be stored in a gasometer (Fig. 292),or by pressure in wrought-iron vessels (see Fig. 293). The saltundergoes a double decomposition, resulting in nitrous oxideand water. As tbns prepared the gas will contain impurities,viz., some of tbe higber combinations of nitrogen with oxygen, Fiff. Fiff. 293. (jasometcr fur collecting and storing nitrousoxide gas.

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectdentist, bookyear1882