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

by Robert Andrews Millikan

1 Hydrogen	24 Chromium	47 Silver	70 Ytterbium
2 Helium	25 Manganese	48 Cadmium	71 Lutecium
3 Lithium	26 Iron	49 Indium	72 Hafnium
4 Beryllium	27 Cobalt	50 Tin	73 Tantalum
5 Boron	28 Nickel	51 Antimony	74 Tungsten
6 Carbon	29 Copper	52 Tellurium	75 ——
7 Nitrogen	30 Zinc	53 Iodine	76 Osmium
8 Oxygen	31 Gallium	54 Xenon	77 Iridium
9 Fluorine	32 Germanium	55 Caesium	78 Platinum
10 Neon	33 Arsenic	56 Barium	79 Gold
11 Sodium	34 Selenium	57 Lanthanum	80 Mercury
12 Magnesium	35 Bromine	58 Cerium	81 Thallium
13 Aluminium	36 Krypton	59 Praseodymium	82 Lead
14 Silicon	37 Rubidium	60 Neodymium	83 Bismuth
15 Phosphorus	38 Strontium	61 ——	84 Polonium
16 Sulphur	39 Yttrium	62 Samarium	85 ——
17 Chlorine	40 Zirconium	63 Europium	86 Emanation
18 Argon	41 Niobium	64 Gadolinium	87 ——
19 Potassium	42 Molybdenum	65 Terbium	88 Radium
20 Calcium	43 ——	66 Dyprosium	89 Actinium
21 Scandium	44 Rhuthenium	67 Holmium	90 Thorium
22 Titanium	45 Rhodium	68 Erbium	91 Uranium X
23 Vanadium	46 Paladium	69 Thulium	92 Uranium

FOOTNOTES:

[1] Mem. of the Manchester Lit. and Phil. Soc., (1851; 2d series), 107; Phil. Mag. XIV (1857), 211.

[2] Phil. Mag., XIX (1860; 4th series), 28. Clausius had discussed some of the relations of this quantity in 1858 (Pogg. Ann. CV [1858], 239), but Maxwell’s magnificent work on the viscosity of gases first made possible its evaluation.

[3] I, 375-36.

[4] See Werke, IV, 281.

[5] Op. cit., p. 294.

[6] Phil. Mag., XI (1881; 5th series), 384.

[7] Wissenschaftliche Abhandlungen, III, 69.

[8] Kelvin, “Contact Electricity and Electrolysis,” Nature, LVI (1897), 84.