John,
  I believe Dan Geiger's e-mail address has changed.  the last one that I
had for him (as of April) was

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It should also be mentioned that Dan also wrote the volume on Haliotidae
for Poppe's Conchological Iconography.

Regards,
Charlie
******************************************************************************
Charlie Sturm, Jr
Research Associate - Section of Invertebrate Zoology
                     Carnegie Museum of Natural History, Pittsburgh, PA
Assistant Professor - Family Medicine

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