Possible Clues:

• There''s such concentration in Germany to atart with
• The characteristic nature of a German city engineer
• The sect is concentrated around the century
• The concentration of the Jewish sect around the century
• Inner nature of anything
• Concentration is needed to get you there in Germany first of all
• That's the scent that starts in Germany
• Might C.E. have the sense to have such concentration?
• That's how e's got the scene concentrated
• Perfume distillation