Researches on Magnetism, Electricity, Heat, Light, Crystallization, and Chemical Attraction - In Their Relations to the Vital Force #264652 10,85€
Vector Analysis - An Introduction to Vector-Methods and Their Various Applications to Physics and Mathematics #264588 7,85€
Koptisch-Gnostische Schriften - Die Pistis Sophia; Die Beiden Bücher des Jeû; Unbekanntes Altgnostisches Werk #253552 9,85€
