They comprise the Carboniferous Limestone, the overlying Gritstone and finally the Coal Measures, though the latter occur only on the extreme margins of the area.

As the cap expands, a narrow sterile (i.e., without any reproductive cells typical of the hymenium) band which frequently becomes lobed or irregularly-jagged often forms at the extreme margin.

The extreme margin often has a pale yellow or white band around it, (as in the photograph on the right) and it discolours darker, and dirtier with age.

I stripped to the skin, and stood on the extreme margin with my hands clasped, irresolute.

The mine is filled with coiled or dispersed frass, except on extreme margins of mine.

The Helliconian Institute's receiver was situated on Pluto's moon, Charon, on the extreme margins of the solar system.

Approximately 19,000 years ago, the Dells was at the extreme eastern margin of the continental glacier.

The extreme margin is marked by small lines, grooves or ridges when the cap is moist.

Jarvis said these games are always difficult because they require not only victory, but victory by extreme margins.

The legs are pale brown and the fore wings are greyish white, brownish along the extreme costal margin.