So also chemists have discovered that the same kind and the same number of chemical atoms may be arranged in different ways and thus become entirely different things in their properties, though the materials are unchanged; such "isomeric compounds" are among the most interesting of modern chemical discoveries; the arrangement of similar atoms under different ideas gives different bodies.
"Esoteric Christianity, or The Lesser Mysteries"
Annie Besant
It contains very little, if any, isomeric dichlorohydrin, since on oxidation it gives dichloroacetone in good yields.
"Organic-Syntheses"
Conant, James Bryant
Moreover, the phenomena attending isomeric change give a clue to those movements which are the only indications we have of life in its lowest forms.
"Essays: Scientific, Political, & Speculative, Vol. I"
Herbert Spencer