This is from Alan Jones. You have either received the CD or it is in the mail.
Most copies have a cover letter.
Through Time, Eruptions Through Time, Smithsonian Exhibit Version, and Seismic Waves. These powerful interactive programs sequentially plot global data sets of earthquakes and volcanic eruptions since 1960 on colorful world and regional physiographic maps, showing the dynamism of the Earth. Our advertising budget is limited and word of mouth referrals will help us reach the educational arena where we think this product has great utility.