AI 
A 
X THE QUANTUM 
CHAP. 
Quantization in Space ...... 
PAGE 
VI 
83 
i. Theory of Spatial Quantization .... 
83 
2. The Experiments of Gerlach and Stern . 
86 
3. Later Experiments ...... 
89 
VII 
Magnetism ......... 
91 
i. Diamagnetism ....... 
91 
2. Paramagnetism and Ferromagnetism 
93 
3. The Quantum Theory of Paramagnetism 
95 
4. Magnetism and the Structure of the Atom 
99 
5. Magnetism and Chemical Combination . 
6. Magnetism and Angular Momentum—Gyromagnetic 
102 
Ratio ........ 
PART II 
SPECIAL INVESTIGATIONS 
105 
VIII 
Whittaker’s Quantum Mechanism in the Atom 
109 
i 
i. Introductory : Special Investigations 
109 
2. The Interaction between an Atom and an Electron 
109 
3. The Quantum Mechanism ..... 
in 
4. The Emission of Radiation ..... 
113 
5. Discussion of the Quantum Mechanism . 
114 
IX 
Static Models of Atoms and Molecules . 
121 
i. Some Advantages of Static Models 
121 
2. The Static Models of Lewis and Langmuir 
122 
3. Mathematical Description of the Quantum Force . 
125 
4. A Static Model for the Hydrogen Molecule 
128 
5. A Static Model for Helium ..... 
132 
X 
Quantum Tubes of Magnetic Induction 
134 
i. Magnetic Tubes threading a Circular Orbit 
!34 
2. Magnetic Tubes threading an Elliptic Orbit . 
138 
I, 
3. Quantum Magnetic Tubes for two Current Circuits 
4. Quantum Magnetic Tubes for any Number of Current 
141 
Circuits ....... 
145 
11 
5. Application to the Theory of Spectral Series . 
147 
[I 
6. The Fundamental Nature of Magnetic Lines . 
149 
„ X1 
Four-dimensional Tubes or Calamoids as Quanta 
150 
t 
i. The Four-dimensional World of Minkowski 
150 
3 < 
2. Continuity and Discontinuity .... 
151 
3. Relativity and the Space-Time World . 
153 
4. Tubes of Force in Four Dimensions 
155 
NO 
5. Calamoids as Quanta . 
158 
6. A Five-Dimensional Theory ..... 
, , 
159 
CHAP- 
XII