. Journal. tute committeeeounfai ourably of the pentane. I also found that theKeates lamp is thoroughly reliable, and of a mostsatisfactory character in every respect. The Meth-ven screen gave very contradictory results, but I amwilling to believe that these were in some degreeprob tbly due tn two things : 1st, the too hurried useof the burner after lighting ; and, 2nd, variations in fact affords an explanation of the decrease in thequantity of light emitted through the Methven slotwhen the flame produced by carburetted gas is toohigh. The lower portion of the Same is broughtnearer to the slot
. Journal. tute committeeeounfai ourably of the pentane. I also found that theKeates lamp is thoroughly reliable, and of a mostsatisfactory character in every respect. The Meth-ven screen gave very contradictory results, but I amwilling to believe that these were in some degreeprob tbly due tn two things : 1st, the too hurried useof the burner after lighting ; and, 2nd, variations in fact affords an explanation of the decrease in thequantity of light emitted through the Methven slotwhen the flame produced by carburetted gas is toohigh. The lower portion of the Same is broughtnearer to the slot, which is thus opposed to a light ofdiminished intensity. So far as my tests have ex-tended, I find that the Ten-candle Test, whenburning enriched gas, is remarkably constant, and wellmerits further trial. Summing up the general results of the tests whichI have lately made, and expressing them, for con-venience, in percentage variation from the mean, I FLAT FLAME No. 1. HORIZONTAL RAYS. Flat to ANGULAR RAYS.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
