Here is the first part of one that defines some metrical terms and illustrates them in the lines. Metrical feet - Lesson for a boy "Trochee trips from long to short;
From long to long in solemn sort
Slow Spondee stalks; strong foot! yea ill able
Ever to come up with Dactyl trisyllable.
Iambics march from short to long;--
With a leap and a bound the swift Anapaests throng;
One syllable long, with one short at each side,
Amphibrachys hastes with a stately stride;--
First and last being long, middle short, Amphimacer
Strikes his thundering hoofs like a proud highbred Racer...."
--Samuel Taylor Colerdge, 1803.