. Carnegie Institution of Washington publication. Fig. 57a.—Disposition of coronal apparatus for measuring atmospheric nucleation ("dust"). V, vacuum chamber; F, fog chamber; G, goniometer; g, gage; e, exhaus- tion pipe; t, support for trunnions. Influx pipe at left end of fog Fig. 576.—Disposition of apparatus for measuring atmospheric ionization. E, Ebert's apparatus; B, swiveled brackets sustaining the same; T, thermometers. ling's paper contains. Reference should also be made to P. Langevin's* important discovery of slow-moving ions in the atmosphere and to the work of


. Carnegie Institution of Washington publication. Fig. 57a.—Disposition of coronal apparatus for measuring atmospheric nucleation ("dust"). V, vacuum chamber; F, fog chamber; G, goniometer; g, gage; e, exhaus- tion pipe; t, support for trunnions. Influx pipe at left end of fog Fig. 576.—Disposition of apparatus for measuring atmospheric ionization. E, Ebert's apparatus; B, swiveled brackets sustaining the same; T, thermometers. ling's paper contains. Reference should also be made to P. Langevin's* important discovery of slow-moving ions in the atmosphere and to the work of M. comparisons of this nature are quite beyond the scope of the present straightforward experimental research. 86. Measurements of nucleation.—Number of nuclei in the atmosphere were measured by aid of the corona of cloudy condensation, in the way * P. Iyangevin: Bull. Soc. Fran^. de Phys., p. 79, 1905. fBloch: "Recherches sur la conductibilite' dlectrique, etc.," Paris, 1904. See C. T. R Wilson, Trans. Intern. Congress, St. Louis, vol. 1, p. 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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