Having prepared a case of insects for a Toronto Public School teacher, for her class-room, I thought it might be a stimulus to others to do likewise, if the details were given some publicity.

All of us wiht medium-sized or large collections have duplicates enough from which to select material for such a case without impoverishing our collections, and now that so many public schools have departments of manual training there should be no difficulty in getting the teachers in these departments to co-operate by supplying the necessary cases.