Arguing from the existence of only one mono-substitution derivative, and of three di-derivatives (statements of which the rigorous proof was then wanting), he was led to arrange the six carbon atoms in a ring, attaching a hydrogen atom to each carbon atom; being left with the fourth carbon valencies
derivative הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד