Spectrum Analysis -- Six Lectures1869 |
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Seite x
... THE VAPOUR OF CERTAIN METALS , OR METALLIC COMPOUNDS 172 APPENDIX C. - ON THE SPECTRA OF ERBIUM AND DIDYMIUM COMPOUNDS . 175 APPENDIX D. - DESCRIPTION OF THE MICRO - SPECTROSCOPE 177 LECTURE V. - MAY 30 , 1868 . FOUNDATION OF X CONTENTS .
... THE VAPOUR OF CERTAIN METALS , OR METALLIC COMPOUNDS 172 APPENDIX C. - ON THE SPECTRA OF ERBIUM AND DIDYMIUM COMPOUNDS . 175 APPENDIX D. - DESCRIPTION OF THE MICRO - SPECTROSCOPE 177 LECTURE V. - MAY 30 , 1868 . FOUNDATION OF X CONTENTS .
Seite 134
... Didymium Compounds . Appendix D. - Description of the Micro - spectroscope . THE subject to which I would wish in the first place to direct your attention to - day is the mode by which we can determine by spectrum analysis the presence ...
... Didymium Compounds . Appendix D. - Description of the Micro - spectroscope . THE subject to which I would wish in the first place to direct your attention to - day is the mode by which we can determine by spectrum analysis the presence ...
Seite 140
... didymium and lan- thanum — metals which resemble one another in their properties so closely that it is extremely difficult to separate them from each other by ordinary chemical means . These substances all give distinct lines , and the ...
... didymium and lan- thanum — metals which resemble one another in their properties so closely that it is extremely difficult to separate them from each other by ordinary chemical means . These substances all give distinct lines , and the ...
Seite 142
... Didymium . 29. Ruthenium . 22. Mercury . 23. Silicon . 30. Iridium . 31. Platinum . 24. Glucinum . 32. Palladium . Copies of Kirchhoff's and Ångström's maps are found in Plates III . , IV . , and V. , facing Lecture V .; and a copy of ...
... Didymium . 29. Ruthenium . 22. Mercury . 23. Silicon . 30. Iridium . 31. Platinum . 24. Glucinum . 32. Palladium . Copies of Kirchhoff's and Ångström's maps are found in Plates III . , IV . , and V. , facing Lecture V .; and a copy of ...
Seite 150
... didymium . Now this didymium salt possesses the power of absorbing from white light certain definite rays , so that if I place the solution in the path of our continuous spectrum we 150 [ LECT . IV SPECTRUM ANALYSIS . -SELECTIVE ...
... didymium . Now this didymium salt possesses the power of absorbing from white light certain definite rays , so that if I place the solution in the path of our continuous spectrum we 150 [ LECT . IV SPECTRUM ANALYSIS . -SELECTIVE ...
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absorption alkaline Ångström apparatus appear Appendix bands barium bodies bright bands bright lines Bunsen cæsium calcium carbon chemical action Chemical Elements chloride coincident colour comet compounds contains continuous spectrum dark lines detected diagram didymium electric spark elements emitted employed examination exhibits existence experiments eyepiece flame Fourth Series Fraunhofer Fraunhofer's gaseous gases give green heated Huggins hydrochloric acid hydrogen hydrogen line incandescent inch instrument intensity iron Kirchhoff lecture lens light lithium luminous magnesium Major Tennant measures metallic lines milligramme millimetre motion nebula nitrogen object-glass observed obtained oxygen pass peculiar Phil placed plate platinum portion position potassium presence prism produced rays reaction red line refracting refrangible rubidium salt scale seen Sirius slit soda sodium sodium line solar atmosphere solar spectrum spectra spectroscope spectrum analysis stellar strontium substance sun's telescope temperature thallium tube vapour violet visible volatile whilst wire