ff. 1–9:
§ 1. Introduction.
§ 2. The theoretical formulae.
§ 3. Comparison of theory and observation.
§ 4. Alternative experimental methods.
§ 5. Values of the constants.
f. 10:
§ 5. The problem of consistency [beginning].
f. 11:
[§ 6. The β-coefficients [conclusion].]
ff. 12–21:
[§ 2. The theoretical formulae [conclusion].]
§ 3. Comparison of theory and observation
§ 4. Values of the constants.
§ 5. The problem of consistency.
§ 6. The β-coefficients.
§ 7. The spectroscopic e/mec.
ff. 22–5:
§ 6. The β-coefficients.
§ 7. The constant e/mec [beginning].
(This item comprises various superseded parts of B3/19. The sheets have been numbered in the order in which they were found, but it is possible that some jumbling has taken place. At least six different states of this paper may be distinguished, as follows:
(i) B3/18, ff. 1–9.
(ii) B3/19, ff. 1–6; B3/18, ff. 12–21
(iii) B3/19, ff. 1–12; B3/18, f. 10.
(iv) B3/19, ff. 1–15; B3/18, ff. 22–25;
(v) B3/19, ff. 1–16; B3/18, f. 11; B3/19, ff. 18–?.
(vi) B3/19, ff. 1–17, 17a, 18–23.)