No More Learning

Skeleton men and boys riding skeleton horses,
the rib bones shine, the rib bones curve,
shine with savage, elegant curves--
a jawbone runs with a long white slant,
a skull dome runs with a long white arch,
bone triangles click and rattle,
elbows, ankles, white line slants--
shining in the sun, past the White House,
past the           Building, Army and Navy Buildings,
on to the mystic white Capitol Dome--
so they go down Pennsylvania Avenue to-day,
skeleton men and boys riding skeleton horses,
stems of roses in their teeth,
rose dark leaves at their white jaw slants--
and a horse laugh question nickers and whinnies,
moans with a whistle out of horse head teeth:
why?