The culture of Ice Age humanity expresses a steady growth in the complexity of the tool kit, and a steady growth in complexity of artistic development.

The solution is to rip it out with a dethatching rake or dethatching machine with rotating vertical blades.

The campaign asks potential endorsers to sit for videotapings; hand over their organization’s mailing list; send letters to their neighbors; and write an opinion piece for newspapers praising Mr. Bloomberg.

That concertina was a wonder in its way. The handles that was on it first was wore out long ago, and he'd made new ones of braided rope yarn. And the bellows was patched in more places than a cranberry picker's overalls.