This is Throwback Thursday #195.  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!

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Geology Class 1953 at Downers Grove High School

25 Years Ago – January 1999

• Dr. Paul F. Ries of Elmhurst College presented “The Many Faces of Salt Creek, Especially Flooding” for the General Meeting.
• The Paleontology Study Group was discussing the Oligocene.
• The Junior Group were doing fossil identification.
• Don Auler announced a field trip to Fermilab, Benedictine College, and Wheaton College.  Physics and fossils…. nice!
• There was a Brazilian Agate Sale by the Lapidary Study Group.

50 Years Ago – January 1974

• Tom Lalish became president of ESCONI and Don Auler became Publicity Chair.   That was Don’s first board position.
• Additionally, Rich Rock became chairman of the Paleontology Study Group.
• The General Meeting topic was “Onyx – From Mine to Market” by Janet Schoenau of Casa De Onyx in Cary, Illinois.
• Tony Sobolik provided a book review of “Fossil Sharks: A Pictoral Review” by Gerald R. Case.
• “Dinosaurs” and “The Treasures of Florence” were programs at the Lizzadro Museum.
• The “Micromount of the Month” was “Pre-Fab Mounting”.
• “Fossil of the Month” was Priapulites konecniorum, a Mazon Creek worm described by Frederick Schram.  It was named for the Konecnys.

70 Years Ago – January 1954

• The General Meeting was “Geology and Surface Features of the Chicago Region” by Dr. Leland Horberg of the University of Chicago.
• The juniors were discusssing Crinoids.
• There was an announcement for Geology classes held in the evening at Downers Grove High School and Proviso High School in Maywood, IL. (Throwback Thursday #144)
• Dr. Fleener, who was teaching some of the evening Geology classes, wrote “Mineral Identity – Density” for the newsletter.
• Evidently, snails average 0.000364 mph – fact from Facets.