As soon as science has solved one problem, new ones arise. This is the essence of science, and it applies, of course, also to the field of essential oils.
Otto WallachAs soon as chemists have a definite conception of the internal structure of the molecule of an organic compound, they are able to tackle the task of producing these substances by artificial methods, i.e. by synthesis, as we call it.
Otto WallachMost of the oils which are valued as scents are mixtures of substances; only the combined effect of these leads to the known result.
Otto WallachOne would think that plants belonging to the same genus would always produce identical or at least similar oils. But this is by no means so.
Otto Wallach