I enclose a small set of transparencies taken from a local "high"" point which show much evidence of (the above) and waste of light (not printed).

  Inter alia

—  Light destroys astronomical observations.

—  Planning guidelines do not deal with the matter at all.

—  Light can be measured simply by the "jogging" of film or by instruments.

—  Controls are a necessity.

  This letter is brief but could be longer. Others with specialist knowledge have doubtless expanded.

April 2003