...experimented on. He confirmed, however, the channelled-space absorption spectra observed by Eoscoe and Schuster in the cases of potassium and sodium,...by the application of a greater degree of heat," a now series of experiments were undertaken by Lockyer and Roberts, in which the combined action of a...

...to the less fusible metals, as well as to ascertain whether the spectra of those which volatilised at the lower temperature would be modified by the application of a greater degree of heat. For this purpose they employed an oxyhydrogen blowpipe, •Mid the lime still used by Stas for the...

...employed for the volatilization of the metals did not exceed bright redness, or that at which cast-iron readily melts, the range of metals examined was necessarily...furnace and the oxy-hydrogen blowpipe was employed. By this means they obtained no new reversal of a metallic line, but they observed channelled-space...

...spectra observed by Roscoe and Sch in the cases of potassium and sodium, and recorded channelled-i spectra in the case of antimony, phosphorus (?), sulphur,...new reversal of a metallic line, but they observed channelled-space spectra in the cases of silver, manganese, chromium, and bismuth. They observed, however,...

...observations to the less fusible metals, as well as to ascertain whether the spectra of those which were volatilized at the lower temperature would be modified by the application of a greater degree of heat. For this purpose we have employed the flame of an oxyhydrogen blowpipe. This instrument 235 devised...

...observations to the less fusible metals, as well as to ascertain whether the spectra of those which were volatilized at the lower temperature would be modified by the application of a greater degree of heat. For this purpose we have employed the flame of an oxyhydrogen blowpipe. This instrument devised by...

...employed for the volatilization of the metals did not exceed bright redness, or that at which cast-iron readily melts, the range of metals examined was necessarily...furnace and the oxy-hydrogen blowpipe was employed. By this means they obtained no new reversal of a metallic line, but they observed channelled-space...

...observations to the less fusible metals, as well as to ascertain whether the spectra of those which were volatilized at the lower temperature would be modified by the application of a greater degree of heat. For this purpose we have employed the flame of an oxyhydrogen blowpipe. This instrument, devised by...