1 Table of Contents: “... Equations -- Exercises -- 3.3 Translating Between Words and Symbols -- Exercises -- Questions to Think About...”

2 Table of Contents: “.... Selection Rules for Isolated Molecules -- 2–2. Selection Rules for Systems Involving Translations -- 2–3...”

3 “... on the first classical symmetry (x-translation) was well-defined and produced the entire series of higher KdV...”