| The bed of the river is gravelly, or composed of waterworn stones, which diminish in size as you recede from the mountains. |
| After scratching our way over a metre downwards through the shingle, we finally hit the waterworn rocks of the early Carboniferous. |
| Sportrock sites are limited to accesible areas of high quality quartzite, and waterworn limestone. |
| It is discovered in a limy stratum at the Brazils, I find, but rarely, and always waterworn. |
| It consisted of a yellow sandstone in thin strata, covered in some parts with beds of waterworn pebbles. |
| The bones are black, brown or white, highly fragmented and waterworn to a variable degree. |
