This is Throwback Thursday #281. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! email:esconi.info@gmail.com.

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25 Years Ago – September 2000

• Stephen J. Gould did a lecture at the FIeld Museum and ESCONI and Irene Broede were there!
• Dr. Meenakski Wadhwa from the Field Museum did a presentation at the General Meeting.
• The Rockhound Flea Market and Auction was held at the College of DuPage
• Karen’s Korner had briefs about Paul Sereno, Florida fossils, and the Dino-Bird.
• Mineralogy/Micromounts discussed the legendary Stewart Tourmaline mine near San Diego, California.
• There was a field trip to the Braceville spoil pile… it was only a 1 day field trip back then.

50 Years Ago – September 1975

• Most of the study groups were doing “Brag Night” to show off what you found during summer vacation.
• ESCONI meetings moved to the Prospect Federal Savings & Loan in Oakbrook, IL
• There were a couple of field trips to Iowa, Pints Quarry in Raymond, IA and the Rockford Brick and Tile Co. in Rockford, IA.
• There was a sale of holiday fruit cakes to support the Koster Expedition.  The Koster Expedition was an archaeological dig near Knapsville, IL that was dated to 6800 years ago.
• The Lizzadro Museum of Lapidary Art had presentations on “Reptiles” and “Jade”.

70 Years Ago – September 1955

• The newsletter had an announcement for the upcoming Downers Grove earth science classes for 1955… Basic Earth Science and Paleontology.  See Throwback Thursday #144.
• There was a field trip to visit Isabel Wassen at the Trailside Museum in River Forest, where she spoke of “Lake Chicago”.  Wassen was one of the first female petroleum geologists in the world.
• Downers Grove held it’s Fall Festival and ESCONI was there with an exhibit.  This event has been held for many years.
• Dorothy Hoffman wrote “A Mighty Waterfall” for the newsletter.
• A brand new pica-character typewriter was used to “write” the ESCONI newsletter.  Pica-pitch is a standard typewriter setting where there ar 10 characters printed within an inch of text.