...arrangement detected by me while constructing my large star-atlas, is due to mere chance-distribution. be produced by some cause, and a cause can be assigned...the absorption which the vapour of iron must exert. As this is the only assignable cause of the coincidence, the supposition appears to be a necessary...

...can be assigned which affords a perfect explanation of the phenomenon. The observed phenomenon may bn explained by the supposition that the rays of light which form the solar spectrum have pass^l through the vapor of iron, and have thus suffered the absorption which the vapor of iron must...

...phenomenon may be explained by the supposition that the rays of light which form the solar ?pectrum have passed through the vapour of iron, and have thus...the absorption which the vapour of iron must exert. As this is the only assignable cause of the coincidence, the supposition appears to be a necessary...

...practically certain that these lines have a common cause. " Hence this coincidence," says Kirchhoff, - ; must be produced by some cause; and a cause can be...the absorption which the vapour of iron must exert." " As this is the only assignable cause of this coincidence, the supposition appears to be a necessary...

...can be assigned which affords a perfect explanation of the phenomenon. The observed phenomenon maybe explained by the supposition that the rays of light,...which form the solar spectrum, have passed through the vapors of iron, and have thus suffered the absorption which the vapor of iron must exert. As this is...

...can be assigned which affords a perfect explanation of the phenomenon. The observed phenomenon maybe explained by the supposition that the rays of light,...which form the solar spectrum, have passed through the vapors of iron, and have thus suffered the absorption which the vapor of iron must exert. As this is...

...arrangement detected by me while constructing my larger star-atlas, is due to mere chancedistribution. The observed phenomenon may be explained by the supposition...the absorption which the vapour of iron must exert. As this is the only assignable cause of the coincidence, the supposition appears to be a necessary...

...can be assigned which affords a perfect explanation of the phenomenon. T4ie observed phenomenon maybe explained by the supposition that the rays of light,...which form the solar spectrum, have passed through the vapors of iron, and nave thus suffered the absorption which the vapor of iron must exert. As this is...

...therefore irresistible that the metals iron and titanium exist in the Sun's atmosphere. Kirchhoff says: "This coincidence must be produced by some cause ;...spectrum have passed through the vapour of iron, and have suffered the absorption which the vapour of iron must exert." According to Professor Lockyer the following...

...the sodium 'D' lines. The German physicist Gustav Kirchhoff gave the first clear explanation of this: the rays of light which form the solar spectrum have passed through the vapour of sodium and have thus suffered the absorption which the vapour of sodium must exert. (Kirchhoff, 1859,...