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Chlorine.--By passing nitrosylchloride, NOCe, over silver to remove chlorine, then over heated copper to remove oxygen and finally over metallic calcimn to absorb nitrogen, a full analysis of this compound was made. l"rom the ratio of oxygen to chlorine it resulted tllat thc At. wt. of cl-dorine is 35.468, and nitrogen is I4.oo6.
Carbon.--Bauln6 and Perrot have found from the density of methane that carbon =-: 12.oo4. tgrom the density of toluol vapor, as deterlnined by Ramsay and Steele, Leduc finds carbon ---12.oo 3.
Iodine a~d Sil'~,cr.--Baxter and Tillev have determined the ratio between iodine pentoxide and silver. They conclude that silver lies between m7.847 and IO7.85o. The corresponding value for iodine is I26.89I.
๐ SIMILAR VOLUMES
h'olids, iiicliidijig pozo~lers.-Thc spcciinciis for spnrking nrc 11~1~1 in clips in an tidjustnblc liolclcr. This holdcr sufices for nict:iIs, alloys or conducting mincrnls. If the spccimcns consist of non-conducting polvtlcrs (such ns tliosc of slags, precious stones, stouy iiincriils, glasses, p