Something I've been playing with. Started out being solely for my own benefit, but what the heck.
http://geocities.com/butchtincher/research1/heliamphora.htm
If you have additional information or see errors then please PM me the information with reference.
Thanks,
Av
http://geocities.com/butchtincher/research1/heliamphora.htm
If you have additional information or see errors then please PM me the information with reference.
Thanks,
Av