. Carnegie Institution of Washington publication. . LIST OF ILLUSTRATIONS. PAGE FIG. i. Fog chamber with appurtenances and X-ray bulb, X 2 2-6. Diagram of a succession of distorted coronas ^ 7. Computed curves 8 8-10. Forms of lead screens T! 11-12. Fog chambers with screens and X-ray bulb 14 13. Fog chamber with axial and oblique radiation 15 14-18. Graphs showing the alternations of the apertures (s) of corona in non-energized dust-free air 21 19. Decay of the nuclei examined in the lapse of hours 21 20-25. Change of apertures (,y) of coronas and number of efficient nuclei (») varying with t
. Carnegie Institution of Washington publication. . LIST OF ILLUSTRATIONS. PAGE FIG. i. Fog chamber with appurtenances and X-ray bulb, X 2 2-6. Diagram of a succession of distorted coronas ^ 7. Computed curves 8 8-10. Forms of lead screens T! 11-12. Fog chambers with screens and X-ray bulb 14 13. Fog chamber with axial and oblique radiation 15 14-18. Graphs showing the alternations of the apertures (s) of corona in non-energized dust-free air 21 19. Decay of the nuclei examined in the lapse of hours 21 20-25. Change of apertures (,y) of coronas and number of efficient nuclei (») varying with the different pressure differences for the cases of superior and inferior coronas 26 26. Number of efficient nuclei (n) obtained in successive exhaus- tions of dust-free air energized by radium 34 27-30. Change of aperture (.y) of coronas and nucleations (n) vary- ing with the pressure differences in cases of dust-free air energized or not by radium (in sealed glass) 34 31-32. Decay of the nuclei produced by radium after the removal of the tube from the fog chamber 34 Apertures of coronas (j) and nucleations (n) varying with the pressure differences, for the case of dust-free air energized by radium acting from different distances 36 35-37- Decay curves found after the removal of the radium from the fog chamber 36 38-39. Apertures (j) and nucleations (w) varying with the pressure differences for the case of persistent nuclei produced in dust- free air by the X-rays 43 40. Filter with wet sponge tube (saturator) 48 41. Rectangular wood fog chamber 48 42. Cylindrical glass fog chamber 48 43. Rectangular fog chamber 49 . 44. Cylindrical fog chamber 49 45-51. Illustrating Tables 29, 32, 33, 34, 35, 36 51 52-55. Illustrating Tables 30, 31 54 56-62. Illustrating Tables 37, 38 62 63-68. Illustrating Tables 39, 40, 41 r 65 69-78. Illustrating Tables 43, 44, 45, 49, SO, 53, 54 73 79-82. Illustrating Table 47 76 83-87. Illustrating Tables 47, 51, 53, 54 88-90. Illustrating Table 5
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