The walls were rock, hollowed out, not built up by blocks.

They would search the town block by block, if necessary.

"We hope to go block by block, expanding to include the entire community."

But, block by block, the city is getting darker at night.

In this way, block by block, Harlem became a black community.

We had to take this city back block by block.

The Army troops restored order to the school and the city, block by block.

Whatever happened to building block by block, always seeking to build on what has been accomplished?

"We're going to have to make sure that we stay in touch with the voters better, to be more connected, block by block."

The thing gives on an impression of large pieces of type having been cut away and replaced by fresh blocks.