Studies in spectrum analysis / by J. Norman Lockyer.

  • Norman Lockyer
Date:
1904
Catalogue details

Licence: In copyright

Credit: Studies in spectrum analysis / by J. Norman Lockyer. Source: Wellcome Collection.

    18/302 page 12
    PACK ‘T FIG. 34. General view of spectrum photographic arrangements, showing heliostat, lamp, and lenses 35. Another view of the spectrum photographic arrangements, shosving camera ........... 36. Arrangement for obtaining solar spectrum alone .... 37. Arrangement for obtaining long and short lines .... 38. Arrangement for obtaining and comparing lines with solar spectrum . 39. Diagram showing the photographic effect on salts of silver 40. Copy of Professor Tait's photograph of the spark in air . 41. /• Hypothetical arrangement of molecules of oxygen before and after 42. ^ the passage of an electric discharge 43. Copy of Dr. Miller's spectrum of cadmium, showing the dots” 44. Repetition of Fig. 15 45. Spectrum of Cadmium and Lead 46. Spectra of the Salts of Strontium ....... 47* The blue end of the spectrum of calcium under different conditions . 48. Specimen-holder .......... 49. Micrometer readings—Zinc and cadmium alloys .... 50. Curve A. Gold and copper alloys 51. Cur/e B. Gold and copper alloys 98 lOI 103 103 103 III 133 134 146 149 149 187 191 220 222 223 223
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