2
Not chaos-like together crush’d and bruis’d,
But, as the world, harmoniously confus’d:
Where order in variety we see,
And where, though all things differ, all agree.- Alexander Pope, 1713
Frontispiece:DNA from a bacterium that has been lysed (burst), for example by osmotic shock
(12200×magnification). The bacterial genome that once occupied a small region in the center
of the figure now extends in a series of loops from the core structure (arrow). From (Wolfe,
1985).