Another uniformity is that called the law of isomorphism; the identity of the crystalline forms of substances which possess in common certain peculiarities of chemical composition.
"A System Of Logic, Ratiocinative And Inductive (Vol. 1 of 2)"
John Stuart Mill
Rose, Gustavus, on isomorphism.
"The Student's Elements of Geology"
Sir Charles Lyell
Finally, isomorphism, or the equality of form of many chemical compounds having a different composition, tends to prove that matter consists of atoms the mere arrangement of which produces all the properties of bodies.
"Familiar Letters of Chemistry"
Justus Liebig