quizzing is in my blood: 158.

Friday, March 18, 2011

158.

This is a stamp released by the Government of Switzerland in commemoration with the International Year Of Chemistry. What does it depict?

2 comments:

Siddarth Pai said...: vitamin c; March 18, 2011 at 9:12 AM
Unknown said...: Vitamin C, synthesised by Swiss chemist Tadeus Reichstein; March 20, 2011 at 10:58 PM

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