A History of the Concept of Valency to 1930 (Paperback)

Preface; List of abbreviated titles; Introduction; 1. Dalton and Wollaston: early notions of chemical combination; 2. Berzelius: the dualistic theory; 3. Frankland, Couper and Kekule: valency as an explicit doctrine; 4. Newlands, Mendeleef and L. Meyer: the incorporation of valency in a chemical system; 5. Pasteur, Le Bel and Van't Hoff: valency as a directional property; 6. Arrhenius: ions and the concept of electrovalency; 7. Werner: a new type of valency; 8. Valency in the twentieth century; Conclusion; Appendix; Index.