看了Introduction to Atomic Spectra书第一章，用时一天

[verdelite]

具体来说是一天中的几个小时。

“Introduction to Atomic Spectra”, by Harvey Elliott White, Ph.D 1934

第一章从第1页到第22页。小节列表如下：
Chapter I Early Historical Development in Atomic Spectra
1.1. Kirchhoff's Law. 1.2. A new Era. 1.3. Balmer's Law. 1.4. Rydberg's Contributions. 1.5. The Rydberg-Schuster Law. 1.6. Series Notation. 1.7. Satellites and Fine Structure. 1.8. The Lyman, Balmer, Paschen, Brackett, and Pfund Series of Hydrogen. 1.9. The Ritz Combination Principle. 1.10. The Ritz Formula. 1.11. The Hicks Formula. 1.12. Series Formulas Applied to the Alkali Metals. 1.13. Neon with 130 Series. 1.14. Normal and Abnormal Series. 1.15. Hydrogen and the Pickering Series. 1.16. Enhanced Lines.

很informative，了解到很多以前不知道的东西（甚至在刚刚阅读了Finkelnburg书的一章之后）。