> as lemmas

1850 G. Fownes Man. Elem. Chem. (ed. 3) 538 An acid body termed campholic acid, white, crystalline, and sparingly soluble in water, containing C₂₀H₁₇O₃, HO. By distillation with anhydrous phosphoric acid, this acid gives a volatile hydrocarbon, campholene.

1872 Jrnl. Chem. Soc. 25 496 The calcium salt furnishes on distillation, campholene, C₉H₁₆.