hite - a very delicate diaphragm was employed; I therefore de- silk is preferable to colored. The motions of these threads, vised a peculiar form of annular burner, similar to those some- i if well charged, are considerable, even when the bodies pre- times used in producing the oxyhydrogen light,… … CIRCULAR MIRROR. THE SPEAKING FLAME. supposed M. Rameaux has found this arrangement in all cases more sensitive and sure than a carefully constructed gold leaf electroscope which he used for comparison. This tube with a gas burner in the same way, by making sound system also recommends itself in…
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