Through all the subterranean channels of that no-white-man's land of native life the search was carried by the famous secret service.

For several minutes he paced up and down, gazing in the direction of the river, as if marking out the dimensions of the subterranean channels.

There must be a lot of subterranean channels under these mountains to account for the springs in tliese canyons.

A subterranean channel led out from the spring that contained small fish and there were pillar shafts there too.

By the time the temple lights flared up, the subterranean channels had all been effectively sealed.

It fronted on a subterranean channel under the island.

After that, he had watched from the wall of the subterranean channel.

"It's the subterranean channel of an inland river," I cried.

He landed in a torrent of water washing down the subterranean channel away from P4.

Before this the lake drained into the sea by numerous subterranean channels.