It's as if my mind is made up of different strata.

They were from an entirely different social stratum than Robert had known.

The chims were obviously uncomfortable with each other, coming as they did from such different social strata.

Thus, different strata in such societies may spend their money on rather different things.

They were in a different social strata than that of the owner and were expected to know their place.

This is important because different strata may identified by fossil fish scales.

They belong to different social and financial strata and every one has got its own problems to deal with.

There are several different strata of till layers across the region.

In some places seven different strata have been counted.

It is if that small town had, as mine did, about 62 different social strata.