Maybe somebody can remember more of Kipling's poem referred to earlier than I can. Or even the title. It was about India, I'm fairly sure. Part went something like:
Are you there, are you there, are you there? Three sides of a ninety mile square, With a helio winking like fun in the sun, Are you there, are you there, are you there? Sounds like a long-range instrument to me and certainly mounted on a tripod for this kind of accuracy. Morse, inevitably, I should think. And why three sides? I suppose a series of heliographs cannot send a message in a circle but I could be corrected about that. Any further help? Regards, Frank -- Frank Evans
