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| Jonathan's
50th Birthday Celebration |
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| The office is prepared... | The group |
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| Jonathan's first surprise of the day | Jonathan's second surprise of the day at Trudy's |
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| The lovely cake... | The anticipation... |
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| Probably Jonathan's biggest surprise of the day...a cowboy hat! | Now he is a true Texan! |
| "Chem
Circus" on "Parents Day", October 20, 2007 Experiment Arrangements:  "Breathalizer": Jon Sessler  "Elephants Toothpaste": Nathalie Guimard  "Balloons (Mixture of Hydrogen/Oxygen)": Candace Lawrence  "Burning Dollar": Jia Jia Cai  "Silver Mirror": Gabriela Vargas-Zuniga  "Lycopodium": Christian Preihs  "Instant Fire": Derric Borthwick  "Liquid Nitrogen": Elizabeth Karnas and Christopher Bejger   |
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| Updated on 10/27/07 by Christian Preihs Photos: Jons Birthday: Evgeny Katayev, Nicholas Melfi and Patricia Melfi Chem Circus: Christine Borthwick |