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Edgar Fahs Smith Memorial Collection | Penn Libraries The Edgar Fahs Smith Memorial Collection is devoted to the history of chemistry and collects broadly in that field, emphasizing periods prior to 1900.	Home | 3DChem.com - Chemistry, Structures & 3D Molecules Showing the world of chemistry and nano science in beautiful interactive imagery. This web site highlights areas of the chemical world and illustrates the structures behind the words.. Karl Harriso,
Virtlab: A Virtual Laboratory Virtlab is the chemistry set you always wanted: Experiment with Chemistry safely and independently. Supplement classroom exercises to improve understanding. Review classroom laboratories in your own home. HAVE FUN while you study science.