His books include "Waves", "Electricity", "Valence" and "Science and Christian belief".

Entity and relation annotations:
id: 0
type: entity
value: text: "Electricity"
labels: <Work_of_art>
id: 1
type: entity
value: text: "Waves"
labels: <Work_of_art>
id: 2
type: entity
value: text: "Valence"
labels: <Work_of_art>
id: 3
type: entity
value: text: "Science and Christian belief"
labels: <Work_of_art>