G'morning David,

 DW> I found an earlier, and much shorter, version of that program. It just
 DW> calculates the directions of the hour-lines on the sundial plate,
 DW> without doing any graphics. I guess it should run on any computer that
 DW> can handle BASIC. In case you're interested, here it is.

Good one !

 DW> Let me know if you hear from Dr. Sprott.

Drove past the sundial yesterday after delivering offspring to a 
distant exam,  but the gnonom was not yet home....   I'll 
certainly report any progress !

Miles.
 
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