The electron, its isolation and measurement and the determination of some of its properties

by Robert Andrews Millikan

is small in comparison with

. However for more rigorous equations see Fletcher, Phys. Rev., IV (1914), 442; also Smoluchowski, Phys. Zeitschr., XVI (1915), 321.

[89] Le Radium, VIII (1911), 279; Phys. Rev., XXXIII (1911), 107.

[90] Phys. Rev., I (1913), 218.

[91] Sitzungsber. d. k. Akad. d. Wiss. in Wien, CXX (1911), II, 1021.

[92] Ibid., CXXI (1912), II, 950.

[93] Ztschr. f. Phys. Chem., LXXXVII (1914), 40.

[94] Die Brownsche Bewegung besonders als Mittel zur Bestimmung der Avogadroschen Konstante, inaugural dissertation. Upsala: Almquist & Wiksells Boktryckeri, 1915.