- Chromo Therapy in Light and Colors as Promoters of Health in All Conditions
- Light and Colors: Nature's Fine Forces Considered As Promoters of Health in All Conditions
- The Human Aura and the Significance of Color
- Light and Colors: Nature's Fine Forces Considered as Promoters of Health in All Conditions
- Light and Colors: Nature's Fine Forces Considered as Promoters of Health in All Conditions