. Carnegie Institution of Washington publication. i6 VAPOR NUCLEI AND IONS. On the 5th and 6th of August a series of experiments was made to test the effect of long and short lapses of time between the observations, as well as the displacements of lower limits of the curves. The results of August 6 at dp*=3$ show that 15 minutes was an insufficient time between observations, but that intervals exceeding 30 minutes (very 100. 600 500 NxlO'3 Figs, ii, 12, 13, and 14.—Early data of efficient nucleations (TV, n) and coronal diam- eter (s), appearing at different exhaustions () in dust-free air. Im


. Carnegie Institution of Washington publication. i6 VAPOR NUCLEI AND IONS. On the 5th and 6th of August a series of experiments was made to test the effect of long and short lapses of time between the observations, as well as the displacements of lower limits of the curves. The results of August 6 at dp*=3$ show that 15 minutes was an insufficient time between observations, but that intervals exceeding 30 minutes (very 100. 600 500 NxlO'3 Figs, ii, 12, 13, and 14.—Early data of efficient nucleations (TV, n) and coronal diam- eter (s), appearing at different exhaustions () in dust-free air. Imperfect fog chamber. slow filtration presupposed) are liable to show the true efficient nucle- ation at the time of experiment. Direct experiments made under con- ditions show that intervals of from one to two hours will in all cases be sufficient for the decay of extraneous 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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