Instances of people's living by one employment, and at the same time deriving some little advantage from another, occur chiefly in poor countries.

It occurs chiefly in hypodermis of stems and leaves.

It occurs chiefly as an instance of a very long word.

It occurred chiefly among charophytes, probably in alkaline temporary pools.

Discussion chiefly occurs on a number of public mailing lists.

A Hammer toe occur chiefly because the shoe is too tight at the front or the heels are too high.

Those actions would occur chiefly through this center.

But the costs would be spread over several years and hiring would occur chiefly as Northwest has new openings.

Elsewhere his name occurs chiefly in the sons of Faanor.

The main errors occur during turns due chiefly to the effect of "magnetic dip".