. Carnegie Institution of Washington publication. MISCELLANEOUS EXPERIMENTS. 49 The region of positive ions should begin at about dp/p = o.^i cm., but neither curve shows the slightest suggestion of any increase in nucleation, though the drop in pressure has been intensified to an extreme case. Fog chambers of the above type thus refuse to admit the separate occurrence of positive ions. To this extent, therefore, the statement that negative ions only are captured would be justified. f40r. .PC .5>Q .2fl .3/ .20 .00 OA o/r r»,O fwy c?V/ c2l .JUj cJt/ Or i)J FIG. 16.—Absence of evidence for th
. Carnegie Institution of Washington publication. MISCELLANEOUS EXPERIMENTS. 49 The region of positive ions should begin at about dp/p = o.^i cm., but neither curve shows the slightest suggestion of any increase in nucleation, though the drop in pressure has been intensified to an extreme case. Fog chambers of the above type thus refuse to admit the separate occurrence of positive ions. To this extent, therefore, the statement that negative ions only are captured would be justified. f40r. .PC .5>Q .2fl .3/ .20 .00 OA o/r r»,O fwy c?V/ c2l .JUj cJt/ Or i)J FIG. 16.—Absence of evidence for the region of positive ions beyond dp/p = ;it in case of a plug-cock fog chamber. Aperture _S in terms of the exhaustion ratio 8p/p. TABLE 16.—Endeavor to find the region of positive ions in radium curve. dp 8p/p S Corona. dp 8p/p S Corona. I. Barometer cm.; temperature °. Radium I to V on top. D = ycm. II. Radium I, inside of fog chamber. D = o. Barometer cm.; temper- ature 24°. 78 gy 19-5 10 • 327 80 gy 20. 6 .268 67 o 23-5 .310 82 gy 21 .O • 274 82 g .302 79 gy .292 102 0 21 .9 .287 79 gy .298 105 o 21-5 .282 76 o •324 110 o .267 5i o 19. 2 .252 13 .... . 270 50 o .278 68 r 21-5 .282 69 r .292 78 gy .285 76 o. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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