special sort

Some special sort of people was, as it were, secreted in response to each special appeal.

The Guide is, it must be recognized, a very special sort of reference work.

They are made from very fine and exquisitely prepared plates and printed on a special sort of paper.

They can be touched, weighed and measured; but their materiality is of a special sort whose vital reactions are as yet unknown.

As these examples suggest, insight is a name for a special sort and degree of knowledge.