Convinced that his uncle was a warlock, he rifled through his attic, looking for demonic artifacts.

It was, however, the need to distinguish specifically between different brown colours which led to the world's first colorimeter.

Now renamed Teaching Australia, its officers are undertaking exploratory steps in developing professional standards for school leaders. A National Standards Drafting Group of volunteer principals is currently drafting principal standards (Teaching Australia, 2007).

Those pea-soupers are the worst drivers on the road!