...But though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved...their ruins, the molecules out of which these systems arc built — the foundation-stones of the material universe — remain unbroken and unworn." Before...

...(1873): Though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved out of their ruins, the molecules [a modern chemist would say "atoms"] out of which these systems are built — the foundation-stones...

...But though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved...material universe — remain unbroken and unworn. I propose to give some account of the steps which have led in our time to the reversal of this view....

...But though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved...material universe — remain unbroken and unworn. I propose to give some account of the steps which have led in our time to the reversal of this view....

...But though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved...ruins, the molecules out of which these systems are built—the foundation stones of the material universe—remain unbroken and unworn. I propose to give...

...may be dissolved and new systems evolved out of the ruins the molecules, the foundation stones of the universe, remain unbroken, and unworn. They continue this day as they were created—perfect in number and measure and weight." We see then that man can make or change the form...

..."Though, in the course of ages, catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved...material universe — remain unbroken and unworn." It was the firm conviction of the nineteenth century, engendered chiefly by what we now know to be...

...: "Though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved out of their ruins, the molecules [or atoms, we should say] out of which these systems are built — the foundation-stones of the material...

...But though in the course of ages catastrophes have occurred and may yet occur in the heavens, though ancient systems may be dissolved and new systems evolved...ruins, the molecules out of which these systems are built—the foundation stones of the material universe—remain unbroken and unworn. Maxwell concluded...

...Maxwell, the greatest physicist of the nineteenth century, wrote of atoms "unbroken and unworn" that "continue this day as they were created — perfect in number and measure and weight." All that was left to do was to count them up, put them on the scale, and click a stopwatch to gauge...